How do we know the doctrine of perfection is true?

The truth of the doctrine of perfection is rooted in the biblical testimony that emphasizes God's sovereignty and grace. In Genesis 17:1, God commands Abraham, 'Walk before me and be thou perfect,' demonstrating that God's demands come with His provision for meeting those demands. This echoes through the New Testament, where we are told in Colossians 2:10 that 'ye are complete in him,' reflecting the sufficiency of Christ's redemptive work. Moreover, the narrative from Hebrews 12:23 affirms that just men are made perfect, underscoring that this is an accomplished fact through God's initiative rather than through our own striving for perfection.