In Christian theology, the word holy has two closely related meanings. First, it refers to the absolute uniqueness, majesty and moral purity of God. God is unlike anything in creation. He is perfectly pure, without sin and completely faithful to what is good. This is the meaning seen in visions such as Isaiah’s encounter with God in the temple and John’s vision of the heavenly throne, where God is worshiped as infinitely glorious and pure (Isaiah 6:1–5; Revelation 4:1–8).
Second, holiness also means “set apart” for God’s purpose. In Scripture, things dedicated to God’s service are called holy because they belong to Him and are not to be treated as ordinary. When Belshazzar misused the sacred vessels of the temple for idol worship, he was guilty of profaning what was holy (Daniel 5:2–4).
Holiness therefore includes both God’s own nature and what is dedicated to Him.
God’s holiness reveals that He is eternal, uncreated, all-powerful, all-knowing, and present to all things. He is before all things and beyond all limitation. God’s attributes (eternal, omnipotent, etc.) don’t automatically come from holiness alone. They’re related, but “holiness” is the umbrella word Scripture uses to describe God as utterly different from creation, and that “difference” includes all those attributes.
God’s holiness reveals that He is eternal, uncreated, all-powerful, all-knowing, and present to all things. He is before all things and beyond all limitation. God’s attributes (eternal, omnipotent, etc.) don’t automatically come from holiness alone. They’re related, but “holiness” is the umbrella word Scripture uses to describe God as utterly different from creation, and that “difference” includes all those attributes.
Human language cannot fully describe Him. Yet Scripture still speaks of Him in personal terms so that we may know Him truly, even if not exhaustively. The psalmist expresses this longing for God by saying, “As a deer pants for flowing streams, so my soul pants for you, O God” (Psalm 42:1). God alone is the true fulfillment of human desire, because He is the source of life and goodness.
At the same time, the holiness of God reveals something about the human condition. Human beings are drawn to God because they are created in His image, yet they also recognize their own weakness and moral brokenness in His presence. When God revealed Himself to Israel at Mount Sinai, the people trembled, aware of their unworthiness before His glory (Exodus 20:18–21). This tension between attraction and awe is part of the human response to God’s holiness.
Though God is worthy of our highest respect and reverential fear, He is neither distant nor aloof (James 2:23). He desires intimacy with us. Despite the sins we have committed, the frequent folly of our thinking, the bouts of pride that stain our character, and the shameful lapses in our faith, God welcomes us with open arms through the redemptive work of His Son, Jesus (2 Corinthians 5:21; Ephesians 2:8–9).
Human beings, however, are not able to attain perfect holiness on their own. While Scripture calls believers to grow in holiness, this growth is understood as a process of transformation rather than instant perfection. Jesus calls His followers to live as “the salt of the earth” (Matthew 5:13). Salt is a preservative, and in these days of moral degradation, may we not be conformed to the behavior and thinking of this decaying planet; rather, may we be ambassadors of Christ and agents of transformation and renewal (2 Corinthians 5:20). Christians are also called not to conform to the patterns of this world but to be transformed in their way of life (Romans 12:2).
The holiness of God also makes clear the seriousness of sin. God is holy. In Him, there is not even the faintest trace of evil. He is impeccably pure, wholly without fault, and uncompromisingly just. God cannot lie. He cannot make wrong decisions. He is blameless, timeless and sinless. By contrast, we are flawed beings tainted by sin (Isaiah 53:6; 1 John 1:8).
Sin is not only wrongdoing but a turning away from the life God gives. Because God is holy and just, sin cannot be ignored, for it damages communion with Him and leads to spiritual death (Romans 6:23).
Yet the Christian message is not centered on fear but on restoration. God’s holiness does not only reveal judgment; it also reveals His desire to save. Through Jesus Christ, God enters human history to heal what is broken, forgive sins, and restore humanity to communion with Himself. The holiness that once reveals human weakness becomes, through Christ, the source of healing and renewal.
For those who are separated from God, His holiness may appear overwhelming. But for those who are being restored through Christ, the holiness of God becomes the highest good. It is not something that drives the faithful away, but something that draws them into deeper communion with Him. Ultimately, holiness is not only God’s defining attribute; it is also the goal toward which human life is called: life in communion with the Holy God who is love, light and life itself.