What does it mean to say Jesus is the Lamb of God?

When we refer to Jesus as the Lamb of God, we acknowledge His sacrificial role in God’s redemptive plan. This title highlights His purity and sinlessness, which qualifies Him to be the ultimate sacrifice for our sins. In John 1:29, John the Baptist proclaims Jesus as the Lamb who takes away the sin of the world, signifying that He fulfills the Old Testament sacrificial system established for atonement. His death on the cross was not just any physical death; it was a perfect and sufficient sacrifice, satisfying God's justice and allowing believers to be reconciled to Him. This understanding is foundational to the doctrine of atonement in Reformed theology, where we emphasize that it is by His blood that we are redeemed and made righteous before God.