How do we know Christ's sacrifice is sufficient for our peace?

We understand that Christ's sacrifice is sufficient for our peace through scriptural affirmations that He reconciled us to God by His death on the cross. Colossians 1:19-20 states, 'For it pleased the Father that in Him all fullness should dwell, and having made peace through the blood of His cross, by Him to reconcile all things unto Himself.' This indicates that true peace cannot be established without a sacrifice that bears the weight of divine judgment, which Christ accomplished perfectly, ensuring our complete reconciliation with God.