How do we know Christ's atonement is sufficient for our sins?

The sufficiency of Christ's atonement is rooted in His role as both fully God and fully man, which qualifies Him to bear the weight of sin on behalf of His people. Isaiah 53:5 affirms that He was wounded for our transgressions and crushed for our iniquities, highlighting that the punishment for our peace was upon Him. This indicates that Jesus’s sacrifice fully satisfied the justice of God, as He bore the wrath that our sins deserved. Since Christ's death was not merely a martyrdom but an atoning sacrifice planned from eternity, it guarantees the redemption of all whom He came to save, illustrating His sufficiency and effectiveness as our Savior.