John 1:29 (NIV) The next day John saw Jesus coming toward him and said, "Look, the Lamb of God, who takes away the sin of the world!
Hebrews 7:27 (NIV) Unlike the other high priests, he does not need to offer sacrifices day after day, first for his own sins, and then for the sins of the people. He sacrificed for their sins once for all when he offered himself.
Romans 3:25-26 (NIV) 25 God presented him as a sacrifice of atonement, through faith in his blood. He did this to demonstrate his justice, because in his forbearance he had left the sins committed beforehand unpunished-- 26 he did it to demonstrate his justice at the present time, so as to be just and the one who justifies those who have faith in Jesus.
I never made a sacrifice. We ought not to talk of sacrifice when we remember the great sacrifice that he made who left his Father's throne on high to give himself for us. -- David Livingstone (1813-1873)