How do we know that Jesus' sacrifice is sufficient?

Hebrews 10 teaches that Christ's sacrifice is absolutely sufficient for the redemption of His people. Verse 14 states, 'For by one offering he hath perfected forever them that are sanctified.' This suggests that the finished work of Christ is complete and not dependent on human merit or works. The covenant of grace assures believers that their salvation is secure, and it is only through faith in His sacrifice that they find reconciliation with God. This assurance grants the believer comfort and confidence in the efficacy of Christ's work.