Gnosticism, far from being a long-dead heresy, was the predominant source of false doctrine when the New Testament was written, and John, I Corinthians, Galatians, Colossians, I and II Timothy, Jude, and I John all combat elements of it, as does Revelation in its references to the "depths of Satan" and the Nicolaitans. Paul's warning in I Timothy 6:20-21 about "what is falsely called knowledge" likely refers to it, since the Greek gnosis is its root. Its hallmarks are secret knowledge, new insights, and the claim that knowledge rather than a relationship with God brings eternal life. It is now resurging in popular culture through The Da Vinci Code, The Matrix, Freemasonry, and Greek societies with their inner mysteries, and in Gnostic gospels such as Judas and Thomas. These late writings contradict Scripture, for example by portraying Judas as the hero or by rejecting fasting, prayer, and giving. Gnostic dualism holds that spirit is good and flesh evil, contradicting God's declaration in Genesis 1:31 that all He made was very good. It also underlies the modern doctrine of the immortality of the soul and the belief that heaven is the believer's home. Gnostic texts are used to promote the divine feminine and female clergy, and a Gnostic egalitarianism leads some to reject authoritative teachers and ministry. Satan encourages this disdain for the God-ordained roles and hierarchy of the church (Ephesians 4:11-16), producing confusion and doctrine reduced to the lowest common denominator, whereas God establishes doctrine and leadership through those He chooses (I Corinthians 12:18; I Timothy 2:7).

A false prophet is anyone who speaks for God but misrepresents Him, either by speaking for another god or by claiming God's authority while contradicting His words. Accurate predictions and miraculous signs do not settle the matter. Deuteronomy 13:1-5 says that even a prophet whose sign comes to pass must be rejected if his message draws people toward other gods or away from the way God commanded, and misrepresenting God carries the death penalty. The standard is "the law and the testimony" (Isaiah 8:19-20): a message that contradicts God's established Word shows no light in the one who speaks it. True prophets always undergird their messages with God's law and expose sin, while false prophets dodge moral teaching, offer soft and popular words, and say what people want to hear. Popularity is therefore no proof of God's approval (Luke 6:26). II Peter 2 describes the character behind false doctrine: secretly introduced destructive heresies, covetousness, exploitation through deceptive words, fleshly living, contempt for authority, presumption, self-will, and a promise of liberty while being enslaved to sin. Jesus says false prophets are known by their fruits (Matthew 7:15-20), and since God does not contradict Himself, His revealed character tests every message. False teachers also draw attention to themselves or to a false god rather than to the true God. The end-time False Prophet will point the world to the Beast, leading people into idolatry, and he will be thrown into the Lake of Fire.

False teachers and false teaching are identified by their fruit, as Christ teaches in Matthew 7:15-20: a good tree cannot bear bad fruit, and a bad tree cannot bear good fruit. So the teaching and the teacher's life, including his integrity and whether he practices sin, must be examined, not just his words. Fruit takes time to mature, as the Parable of the Wheat and the Tares and James 5:7-11 show, so one error does not make a minister a false teacher. All men slip, and a true minister corrects his mistakes and repents. Leaving a group hastily over one disagreement, an offense, or a pet doctrine reflects impatience, self-righteousness, and emotion rather than biblical judgment, and it scatters the church. Some falsehood is blatant, such as teaching against the Sabbath or the Trinity, but much is subtle and gradual, as the church's slide in the Ephesian era shows. False shepherds are ravenous wolves in sheep's clothing, driven by covetousness for gain, power, or prestige. According to John 10, they do not enter by the door, they use the sheep, and they flee as hirelings when wolves come. True shepherds are called by Christ, are trusted by the sheep, lead by example, and lay down their lives. Judgment must be righteous, careful, and patient.

The importance of truth in religious doctrine is a weighty matter, as it is easy to fall into tragic flaws by accepting false teachings. The assertion that the Christian God and the Islamic god are one and the same is a profound error, as it presents a god involved in hypocrisy and confusion, which the God of the Bible is not. It is impossible for God to lie, and He is not the author of confusion. The stark differences in doctrines between Christianity and Islam, coupled with their historical conflicts, provide clear evidence that they do not worship the same God. If they were of the same kingdom, it would not stand, yet the Bible declares that God's kingdom will stand forever. This principle carries serious spiritual ramifications for the church. Division and warfare within or between religious groups are evidence that the relationship with God has broken down, and such attitudes and conduct flow from the ruler of this world, not from the Spirit of God. If Christianity and Islam were drawing from the same Spirit of God, they would be of the same mind and teaching, resulting in unity rather than the antagonism and unstable warfare that exists. The evidence suggests that both groups, divided and warring within their own religions, are influenced by the god of this world, not the God of the Bible. False doctrine is a grave danger, often more insidious than visible threats like wars or tribulations. The warning against false teaching was foremost in Jesus Christ's mind when He spoke of end-time perils. These false teachings come not from those claiming to be Christ, but from a stream of teachers who assert that Jesus of Nazareth is the Christ, yet lead people astray by teaching falsehoods about Him and His way. Such teachings often imply that God's purpose is merely to save people, with little or no responsibility on their part to reciprocate or follow His path. Modern individuals, like Adam and Eve, feel free to alter or reject what God has taught, lacking the loyalty and love that should constrain them to obey Him. This rejection mirrors the end-time prophecy that people will be willingly ignorant of God's word, accepting or rejecting teachings as they see fit, without feeling a responsibility to God. This has led to a multitude of religions and beliefs, as people create their own doctrines, fading God into the background of importance. Among those calling themselves born again Christians, there is a shocking departure from biblical truth. Polls reveal that 26% believe all religions are essentially the same, disregarding the unique way of Christianity. Fifty percent believe that a life of good works alone can lead to heaven, effectively removing the Savior from the equation of salvation. Most staggeringly, 35% do not believe that Jesus rose from the dead, a fundamental tenet of faith without which there is no hope or salvation. These individuals are creating their own religions by picking and choosing what to believe, acting on those beliefs in ways that lead them off the path Jesus trod. The ramifications are clear: what we choose to believe directly impacts our actions, and if we do not believe what God teaches, we will not act as sons of God.

False doctrines have profoundly influenced the church since its inception, stemming from ancient philosophies that predate Christ. The teachings of Greek thinkers like Orpheus, Pythagoras, Socrates, Plato, and Ptolemy introduced erroneous concepts such as evolution, the immortality of the soul, eternal security, purgatory, predestination, reincarnation, astrology, antinomianism, and progressive revelation. These ideas, attractive to human nature, were carried into the church by converts, both Gentile and Jewish, and became embedded in the faith of many, as seen in the struggles addressed in the Epistles. These false teachings often contained distorted elements of biblical truth, making them seem plausible yet fundamentally untrue. For instance, the Greek belief in supernatural demonic powers influencing Earth from the realm between the moon and Earth holds a vague connection to biblical references to satan as the prince of the power of the air, but it wrongly places demons in the heavens rather than on Earth. Similarly, the doctrine of the immortality of the soul, rooted in satan's deception to Adam and Eve that they would not surely die, falsely suggests inherent immortality, contrary to the truth that everlasting life must be given by God. The concept of dualism, another Greek philosophical error, divides the universe into matter and spirit, deeming matter evil and spirit good. This leads to the false notion that the body is temporary and evil, while the soul is immortal and good, resulting in a disregard for physical well-being and sin, as actions of the flesh are seen as inconsequential to the eternal soul. This belief underpins antinomianism, where sin is considered irrelevant, further eroding the importance of resisting worldly ways or striving to know God's truth. Gnosticism, a collection of philosophical and religious concepts brought into the church by converts, was not an organized religion but a set of devastating anti-God beliefs. These included the immortality of the soul and progressive revelation, which allows individuals to justify practices contrary to God's Word by claiming personal inspiration. Such thinking persists in modern Christianity, often under the guise of Hellenistic Christianity, and continues to divide the true church, just as it did in the first century. These false doctrines infiltrated the church through cultural influences, particularly Hellenism, which affected Judea for nearly two centuries before Christ. Jewish converts, known as Hellenists, brought Greek philosophies into the early church, blending them with Judaism and creating a dangerous syncretism of truth and error. This blending made the resulting religion appear deceptively valid, challenging the apostles' efforts to maintain revealed truths, a struggle that continues to impact the church today.

False doctrine poses a significant danger to believers, as it is crafted by a master deceiver who seeks to lead people astray. Satan has deceived the whole world, while the true church remains a little, little flock, vastly outnumbered by those under deception. This deception is especially intense and clever in the end-time, with access to misleading teachings through various media like television, radio, books, and the Internet. The elect must be particularly vigilant, as the deceiver will exploit any possible way to mislead even them, presenting falsehoods in an appealing and subtle manner. Many modern theologians, though sincere, are deceived and teach doctrines that appeal to human nature, often incorporating a twist against God's truth. These teachings frequently support antinomianism, or lawlessness, alongside notions like eternal security, suggesting that one's salvation is assured regardless of obedience. Such ideas, rooted in satan's initial deception in Genesis 3 with the lie "You shall not surely die," promote a false sense of security, encouraging believers to relax and disregard God's commands under the guise of boundless grace. These false doctrines evolve with new terminology like unconditional love, Lordship salvation, or the concept of the carnal Christian, all emphasizing grace over morality. Some teachings even propose that mankind is totally depraved and incapable of contributing to salvation, thus negating the need for personal effort or obedience. Yet, God's word shows that even the Israelites had to perform works, such as walking to the Promised Land and gathering manna, demonstrating that effort is required. We, too, must work out our salvation, as these actions are evidence of our faith and trust in Him. Modern evangelical teachings often contradict themselves by urging righteousness while claiming that keeping God's law is unnecessary for salvation, suggesting that change happens automatically through Christ's presence without personal effort. This creates an inescapable bind, allowing individuals to set their own moral standards, which inevitably conflict with God's standards. Such teachings, exemplified by authors like Steve McVey, label law-keeping as legalistic, arguing that true obedience is a mystical experience based on personal revelation rather than adherence to God's recorded commandments, thus opening the door to sin by defining good according to personal standards. Historically, false doctrines stem from Gnosticism, influencing both Catholic and Protestant branches of Hellenistic Christianity, which emerged as a syncretism of true and false beliefs. These groups reject the necessity of law-keeping, including Sabbath observance, viewing it as backward while promoting Sunday worship as a symbol of liberation from law. Their teachings, such as eternal security, progressive revelation, and antinomianism, persist today, continuing to challenge the true church. God's judgment against such syncretism is clear, as He will not tolerate a blend of true and false worship, and history shows the devastating effects of these deceptions through the actions of those who rejected His government. The true church must remain steadfast, holding to the doctrines and traditions given by God, enduring to the end amidst these deceptions. The path to salvation lies in measuring up to His standard, not ours, and demonstrating our faith through works and obedience to His law, lest we fall into the trap of self-established standards that lead to judgment.

False doctrine poses a grave danger to spiritual unity and truth, leading many astray from the path God has set. It is the root cause of division and scattering among believers, as it destroys the unity of belief essential for the Church of God. Those who embrace false doctrine by fellowshipping with churches that do not adhere to the true teachings, such as observing the Sabbath, are running into the arms of the very source of division. This act is akin to spiritual adultery, mirroring Israel's unfaithfulness when they worshipped at high places after the covenant at Mount Sinai, which ultimately led to Christ divorcing them. God warns against following false prophets or teachings that draw people away from Him, testing their love and faithfulness. Fellowshipping with groups that defy clear commandments, like the Sabbath, inevitably results in being taught doctrines the Lord has not commanded. Such actions demonstrate a failure to remain faithful to Jesus Christ, seeking spiritual needs outside of His body, the Church of God. Scripture repeatedly commands believers to avoid such associations, emphasizing that joining with the enemy's camp cannot correct doctrine or equip one for good works. The Church of God is the pillar and ground of the truth, distinct from other spiritual organizations that reject clear signs like the Sabbath. Fellowshipping with these groups leads to absorption into their false teachings, causing believers to lose their distinctive identity as part of God's organized body. This blending in with the world's churches is a naive and foolish path, as it prevents one from being a true witness to God's way. God's command is clear: come out from among them and be separate, for there is no fellowship between righteousness and unrighteousness, nor communion between light and darkness. False doctrine deceives and scatters, hindering godly maturity and unity, as believers are tossed about by every wind of teaching through the cunning of men. The true doctrine, given as a specific package within the Church of God, aligns with God's purpose and leads to the correct conduct for life. In contrast, the teachings in other churches focus on worldly concerns rather than the Kingdom of God, promoting perversions that do not prepare one for God's plan. Those who subject themselves to such influences are on a different path, one that ends at a different destination due to the conduct born from false belief. Obedience to true doctrine is essential for preparation as part of the first fruits, and straying into false teachings through fellowship with errant churches risks spiritual loss.

False doctrine poses a significant threat to the true Christian faith, as it undermines the solid foundation of truth established by Jesus Christ. God inspired the writers of the New Testament to warn that His church must be rooted in the truth of Christ to defend and contend for the faith against the constant bombardment of deceptive teachings. Just as counterfeit money is recognized by studying the genuine currency, false doctrine can be identified by becoming thoroughly familiar with the true doctrine of Christ. For this reason, God cautions against learning the ways of the Gentiles, which are filled with counterfeits of His doctrines. While every major religion claims unique insight into eternal truths, true Christian doctrine asserts that Jesus Himself is the truth, not merely a teacher of it. More crucial than exposing false teaching, true doctrine serves as the guide to salvation, revealing how to live in a manner that pleases God and instills His fundamental character traits in us. Only through His doctrine can a person hope to find and remain on the path to the Kingdom of God.

In the first century after Christ's death and resurrection, false doctrines infiltrated the church through individuals who appeared converted but held beliefs and practices contrary to biblical instruction. These invaders, often labeled as Gnostics, claimed superior personal revelations that they believed surpassed the teachings of Jesus and the apostles. They viewed themselves as above the truly converted, despising adherence to Yahweh, the Old Testament laws, and particularly the Sabbath. Their ideas, largely drawn from Greek philosophy and adapted to biblical truths, were worldly concepts inspired by satan and his demonic forces. These false teachings posed significant challenges in the early church, providing much material for the apostles' epistles as they addressed these issues within the congregation. God ensured that these erroneous beliefs were preserved into the end-time, indicating that the church today would face similar deceptive concepts. Messages to the churches in Revelation, such as those to Ephesus and Pergamos, warn against the deeds and doctrines of the Nicolaitanes, which Christ Himself hates, and reference the deep things of satan, pointing to Gnostic influences. These admonitions remain relevant for the end-time church, emphasizing the need to hear and act upon the Spirit's warnings to overcome such deceptions. Though Gnostics were largely expelled from the church by the second through fourth centuries, their teachings persisted in separate groups named after leaders like Nicolas and Simon Magus. While some of their more extreme doctrines faded, core principles such as disbelief in the Old Testament, belief in the immortality of the soul, eternal security, dispensationalism, antinomianism, and hatred of the Sabbath continue to dilute modern Christianity. These ideas were transmitted through historical figures and movements, including the Catholic Church and the Protestant Reformation, with influential individuals like Augustine, Martin Luther, and John Calvin playing significant roles in perpetuating Gnostic thought. Augustine, who had ties to the Manichean sect of Gnosticism before converting to Catholicism, introduced teachings that justified church authority and the use of violence to enforce its will, contributing to persecutions during the Middle Ages. Luther and Calvin furthered doctrines like predestination and eternal security, which lack biblical foundation as they taught them, reflecting Gnostic influences. Their personal conduct and teachings often contradicted the fruits expected of true followers of Christ, revealing a disconnect from His teachings. Modern theologians continue to propagate these false doctrines under new labels like Lordship Salvation and concepts such as carnal Christians, suggesting that salvation cannot be lost regardless of behavior. Such teachings defy biblical warnings against willful sin and the necessity of obedience, as emphasized by Christ and the apostles. They appeal to human nature's desire for an easy path, ignoring the call to study, qualify, and live according to God's commandments. These deceptive ideas, rooted in ancient Gnosticism, remain a subtle but persistent threat to the church, requiring vigilance to avoid being led astray.

False doctrine consists of deviations from the one specific faith, which is a group of doctrines formed by specific words arranged in a simple, direct, and true way. God warns against adding to or taking away from His Word, yet people pick and choose doctrines as they please. Doctrinal disagreement produced the devastation of the Worldwide Church of God when its wall of protection was removed and the organization split into factions. Doctrines such as the immortality of the soul and eternal security form a base that weakens resolve to overcome sin and produce right character through right choices based on right teaching. This careless approach leads to presumptuousness, as seen in the Laodicean description of having need of nothing. In the first century, charlatans taught false doctrines by producing convoluted explanations that twisted the Bible's plain statements. The serpent used this method with Eve by parsing the word die to claim that death would not occur. Similar practices appear in twisted explanations of Passover observance in Goshen and the wave sheaf in Joshua 5, where speculation becomes the basis for doctrinal conclusions despite clear statements in Exodus, Deuteronomy, and Leviticus forbidding the offerings involved. Paul instructed Timothy and Titus to guard the teachings received from Jesus Christ, to preach them lawfully, and to permit no deviation whatever. These false doctrines impacted the first century church and continue to affect believers through unbelief that parallels the ancient Israelites.

Paul sends Titus into Crete, a culture of deceit and self-indulgence, to appoint blameless, self-controlled elders faithful to sound doctrine, because many rebellious "idle talkers and deceivers," chiefly of the circumcision, are subverting whole households for dishonest gain. The idle talkers wear people out with meaningless words. The deceivers (phrenapates) mislead deliberately and methodically, pushing the church back toward justification by law-keeping, ritual purity, Jewish myths, and human traditions. Their mouths must be stopped (epistomizo, as with bridling a horse or muzzling a dog) through sharp rebuke and, if needed, discipline or disfellowshipping. The rebuke is not punitive; it aims to enlighten and restore the offender, and to strengthen the faithful, though offenders often just leave. Paul calls them "defiled": their minds and consciences are corrupted, they profess to know God but deny Him by their works, and they are abominable, disobedient, and disqualified for every good work. Believers should likewise distrust the teachings of unbelievers, such as secular media and even evangelical commentators who do not acknowledge God, citing II Timothy 4, Colossians 2, and Matthew 15. "To the pure all things are pure" does not abolish God's law on clean meats. Per I Timothy 4, food must be received with thanksgiving and prayer and sanctified by God's Word. The ritual impurities of the Old Covenant are gone, so the deceivers' arguments are baseless. Romans 16 and Jude show that every apostle faced such men. The remedy is to contend earnestly for the faith and keep oneself in God's love.

False doctrine is marked by complexity, philosophy, and human reasoning that lure people away from the simplicity that is in Christ. Paul feared that, like Eve deceived by the serpent's craftiness, believers would be corrupted from that simplicity (II Corinthians 11:3). Convoluted arguments, designed to prove the church's clear, pure doctrines wrong or foolish, appeal to vanity, spiritual laziness, and emotions. Under their influence, weaker members accept changes without question because the teachers hold theology degrees, the intellectually inclined fall in line out of a sense of superiority, and many simply give up in frustration. Those who recognize that such reasoning is not the voice of their Shepherd refuse it (John 10:3-5). Christ's teachings are so simple that children can understand them, and even hard topics like justification, sanctification, and salvation can be explained clearly to those who seek to prove what is right rather than to disprove and destroy (Acts 17:10-11). The apostles repeatedly warned against false teaching: Paul to Timothy and Titus, Peter about the twisting of Paul's words, and John and Jude about deceivers within the church. True doctrine need not be complex. "Remember the Sabbath day," loving God with all the heart, and doing to others as you would have them do to you are simple and pure. Error enters when worldly wisdom and fallible human ideas are blended with God's truth, for they do not mix, like oil and water. God's wisdom comes through His Spirit, who teaches spiritual things in words He supplies, not in words man's wisdom teaches (I Corinthians 2:10-13). The remedy is to stop wrangling over useless technicalities and return to the simplicity of God's Word.