Jesus is described as holy in the Bible because He is free from any sin or wickedness, fulfilling God's demand for absolute holiness.
Holiness means being completely free from sin, and God's demand for holiness is absolute. In Hebrews 7:26, Jesus is highlighted as a high priest who is 'holy, harmless, undefiled, separate from sinners.' This means that unlike humanity, which is inherently sinful, He is entirely without sin and represents God's perfect standard. His holiness is crucial for our salvation, as He alone can mediate between a holy God and sinful humanity. Without His holiness, there would be no hope for reconciliation with God; thus, Jesus' holy nature is foundational for the doctrine of substitutionary atonement.
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