God's purpose for us is to become Kings and Priests under Jesus Christ in His Kingdom, and for this, we prepare to be a royal priesthood and holy nation. Holiness is essential for those who serve Him, as He demands our exclusive worship and allegiance due to His unique and unparalleled nature. Because the Lord is holy, those who serve Him must also be holy, striving for conformity to His character and purpose, regardless of their status within the community. Becoming holy means consecration to work towards the highest standards we know, which are the standards of God our Creator. This consecration involves exercising self-control and self-denial, restraining ourselves from activities or things others may enjoy without consequence. To be holy, one must truly walk the narrow way, keeping the temple of God clean because He dwells within it. This may require separation from old friends and family, which can be painful, but our loyalties must be to Christ, dedicating our time through much study and prayer to maintain an intimate relationship with the source of holiness. Consecration to holiness also means presenting our bodies as living sacrifices, holy and acceptable to God, implementing His desires and purposes as a new creation in Christ Jesus. It requires growth in holiness beyond merely being designated as holy by our calling, achieved through actual life experiences within our relationship with Him, as we strive to live as He did when He was flesh and blood. This formidable challenge of attaining holiness is commanded of us, and with His help, some measure of His holiness can be imparted to those in close relationship with Him, becoming part of our nature and the way we live.

Sanctification is a vital process by which God separates certain individuals, objects, and even time for His divine purpose and plan. It serves as the means through which He guides and moves His creation toward His ultimate goal of holiness. In the Old Testament, objects, spaces, and people are often declared holy simply because they are set apart for divine use, with strict rules governing their handling and interaction. While the emphasis there is on the designation of holiness, the New Testament shifts focus to the process of a person becoming holy, making it the central goal of Christian life. This transformation is driven by the recognition of God's absolute holiness, a quality so distinct and admirable that it compels the converted mind to strive to be like Him. Holiness, at its root, signifies cleanliness and purity, both ceremonially and morally. God Himself is the epitome of cleanliness, and sin, by contrast, is defiling and repugnant to Him. To be in His presence or to have a relationship with Him, one must become clean in heart and conduct, aligning with His standards as revealed in His laws. This cleanliness manifests in attitudes and behaviors, reflecting a profound respect or reverence for what is holy, setting the sanctified apart from those who are not. Consecration, synonymous with sanctification, involves a cleansing of one's life—conduct, speech, and thoughts—to meet God's definition of clean. It is through this process that individuals like Noah and Abraham were set apart by Him. Noah, already deemed blameless and just, found grace from God long before the task of building the Ark, empowered by this gift to live righteously and fulfill His purpose. Abraham, similarly chosen, was instructed to walk before Him and be blameless, achieving integrity through faith and humble obedience, thus bridging the vast difference between human imperfection and divine holiness. God's sanctification extends beyond individuals to entire lines of descendants, as seen with Seth, Noah, Shem, and Abraham, forming a protected lineage against Satan's influence. This separation, often marked by enmity and opposition, acts as a spiritual hedge, safeguarding those He has chosen while testing their faithfulness. Notably, only those sanctified by Him, like Noah and his family, escaped the destruction of the Flood, underscoring the profound importance of sanctification in His plan. As His purpose unfolds, He continues to sanctify, expanding from individuals to an entire nation, as with Israel through Moses, demonstrating His deliberate and consistent involvement in setting apart His people for His divine objectives.

Consecration, as a vital aspect of our distinctiveness, calls us to dedicate ourselves fully to God. It is a responsibility of the priesthood, as seen in the commands to remain clean when receiving offerings devoted to Him. Those who are to handle the holy things must consecrate themselves, ensuring they are not defiled, for defilement symbolizes the contamination of sin and its effects. This principle underscores the importance of maintaining purity, as God insists on avoiding contamination due to how easily it can transfer to our character. Human nature attracts defilement, making it essential for us, as a royal priesthood, to be vigilant in preserving our spiritual, moral, and ethical cleanliness. The call to consecration is a daily responsibility, requiring continuous cleansing from the influences of the world. It is not enough to merely observe rituals or commandments; the manner and understanding with which we keep them reveal the true witness of our separation. Through this dedication, we are reminded of who we are—a chosen generation, a holy nation, set apart to make sacrifices acceptable to God by Jesus Christ and to show forth His praises. Consecration, therefore, is not just an act but a way of life that protects our holiness and perfects it through our relationship with Him, ensuring we remain unspotted from the world.

Consecration emerges as a central thread running beneath the discussion of the Sabbath and the Feast of Tabernacles, both of which are commanded observances that God alone has set apart as holy. The Theological Wordbook of the Old Testament defines holiness in terms that include to consecrate, sanctify, prepare, dedicate, be hallowed, and be separate, establishing that consecration is not a human act but a divine one. Only God can make something holy; human beings cannot consecrate anything on their own authority, though they can profane what God has already set apart by failing to honor His law. This point is illustrated through an encounter with a Protestant minister who claimed to "keep every day holy," a statement exposed as prideful self-determination rather than genuine consecration, since holiness originates with God alone and cannot be self-assigned. This principle of divine consecration extends directly to the calling of God's people. Just as the Sabbath was made holy by God's presence and command, so those whom God calls are consecrated—set apart, sanctified, and dedicated—not by their own choice or effort, but because God Himself has chosen them. This calling is described not merely as a high calling but a holy calling, since no one else can call, choose, or open a mind to God's truth. The phrase "the apple of His eye," drawn from Zechariah and Deuteronomy, reinforces the depth of this consecration: those called are cherished above all others, chosen out of billions, and set apart for sacred use in a way that distinguishes them from the common. The account of Moses at the burning bush deepens this theme, showing that ground itself became holy solely because of God's presence, requiring Moses to remove his shoes rather than trample on what God had consecrated. This is applied directly to the Sabbath, which is likewise holy ground because God dwells within it, requiring reverence rather than personal pleasure or self-directed activity. Jesus' prayer in John 17, that the Father and Son would dwell within believers so that they may be one, ties consecration to the indwelling presence of God in His people, raising the question of whether that same presence is honored, especially on the Sabbath, or brought carelessly into places of personal pleasure. Isaiah 58 exposes the failure of consecration when people substitute their own pleasure, ways, and words for God's holy day, thereby forgetting the One who consecrated the Sabbath in the first place. Their fasting and worship, though outwardly religious, were self-determined rather than divinely ordained, illustrating that consecration is violated whenever specifics are treated as optional. The closing charge from Leviticus, "You shall be holy, for I the Lord your God am holy," summarizes the entire theme: true consecration flows from God's own holiness and demands that His people remember, honor, and preserve what He alone has set apart.

Believers are a present royal priesthood offering spiritual sacrifices within the church, nourished by Christ's exclusive altar. The Feast of Tabernacles mirrors Levitical consecration, with its seven-day structure and blood application to ears, thumbs, and toes symbolizing hearing God, serving, and walking steadily. This pattern emphasizes present sanctification over merely prophetic future, inviting believers to be continually filled from God's table. Neglecting this spiritual food risks stagnation, so the feast serves as a vital period of consecation, strengthening believers to serve alongside their High Priest.