How do we know the doctrine of God's holiness is true?

God's holiness is central to His nature as revealed in the Bible, particularly in passages such as Revelation 15:4 and Psalm 145:17, which declare His righteousness and purity. The holiness of God signifies that He is entirely separate from sin and incapable of wrongdoing. Believers understand that God's holiness demands a response from humanity, as it highlights the stark contrast between His divine nature and our sinful condition. Moreover, the reality of God's holiness is evident in the sacrificial work of Christ, where sin placed upon Him was met with the wrath of God's justice, further emphasizing how vital this doctrine is to our understanding of salvation.