What does it mean to be part of the 'holy people'?

In Isaiah 62:12, God proclaims that His people will be called 'holy' and 'redeemed.' This designation is rooted in the transformative work of Christ, who makes His people holy through His perfect obedience and sacrificial death. A believer's holiness is not based on personal merit but through their union with Christ, who stands as their righteousness. This aspect of being God's holy people assures believers that despite their struggles with sin, they are seen as holy in God's eyes because of Christ's finished work.