False conversion is illustrated primarily through the Parable of the Wheat and the Tares in Matthew 13, which reveals that within the visible, physical church, genuine conversion and its counterfeit exist side by side. Jesus, as the sower, plants good seed—those who become children of the Kingdom through receiving, understanding, and obeying His Word—while His enemy, the diabolos, sows tares among the wheat under cover of darkness, representing his sly and deliberate strategy of causing confusion by placing the wicked among the righteous rather than among the wicked. Tares, identified as darnel, are virtually indistinguishable from wheat while immature, meaning that false conversion often closely resembles true conversion in outward appearance. Many who are not genuinely undergoing conversion attend church, pray, and read Scripture just as true Christians do, yet they remain merely religious hobbyists, present mainly for social association or to argue about biblical matters rather than to be transformed. These individuals are called children of the wicked one—not originally created by him, but shaped and led by his influence until they take on his character. This mixture of true and false conversion is not unique to the church but mirrors the intermingling of good and evil found in nations, communities, and homes, reflecting Satan's consistent method of operation. The presence of tares among the wheat is often a mystery to believers, yet God cannot be blamed for it, since He does not sow evil—Satan does. Instead, God permits this mixture as a means of strengthening His true church. Jesus prophesied that the physical church would therefore be imperfect, containing genuinely converted members who possess the Holy Spirit yet still carry personal defects, alongside unconverted individuals who recognize the truth without being transformed by it. The parable is not meant to expose or strip away the disguise of these religious hobbyists prematurely; rather, God will reveal the bad seed only once the good seed has matured, with final separation coming only at the harvest, when the tares are bound and destroyed while the wheat is preserved. This teaching serves as a warning to genuinely converted believers to remain watchful, since even true wheat, as Jesus told Peter, can be sifted by Satan. Tares can take root even within a converted heart in the form of bitterness, complaining, spiritual laziness, or indifference toward God's truth. Ultimately, the distinction between true and false conversion underscores that the real, unseen spiritual church—the one Body of Christ unified by the Holy Spirit—is composed only of the truly converted, while the visible physical church, though outwardly appearing unified, will always contain this mixture until the final separation.