How do we know Jesus is the true sacrifice for sin?

The authenticity of Jesus as the true sacrifice is rooted in His divine nature and mission. The Bible firmly establishes Him as the appointed Lamb who was foretold in the Old Testament sacrificial system. Hebrews 9:26 states that He appeared to put away sin by the sacrifice of Himself, confirming that no other sacrifice is necessary or can achieve redemption. Furthermore, the New Testament portrays Jesus as fulfilling the prophecies of being the Lamb of God. His atoning work is effective because He is both fully divine and fully human, making Him the perfect mediator who can bridge the gap between a holy God and sinful humanity. In Revelation 5:9, it is proclaimed that He has redeemed us to God by His blood, establishing the sufficiency of His sacrifice.