After Jesus interpreted bread as his body (Matt. 26:26), he spoke of a cup as his blood: “Drink of it, all of you, for this is my blood of the covenant, which is poured out for many for the forgiveness of sins” (26:27-28). His words alluded to at least three places in the Old Testament.
“blood of the covenant”–This alludes to Exodus 24:8. Moses threw blood on the people and said, “Behold the blood of the covenant that the LORD has made with you in accordance with all these words.” The context was the sealing of the Mosaic covenant, and the blood he threw was from animals.
When Jesus appropriates Exodus 24, like Moses he is also speaking in a covenant context, only not about that old covenant. He is making a new covenant (see Luke 22:20, which adds the word “new”). This new covenant didn’t involve animal blood. Jesus said the cup was “my” blood.
“which is poured out for many”–This alludes to Isaiah 53:12. The prophet Isaiah said, “Therefore I will divide him a portion with the many, and he shall divide the spoil with the strong, because he poured out his soul to death and was numbered with the transgressors; yet he bore the sin of many, and makes intercession for the transgressors.”
When Jesus appropriates Isaiah 53, he is taking on the Suffering Servant role described by that ancient prophet. The words of Isaiah 53 painted a graphic picture of the suffering and death of Jesus who would pour out his life unto death. The language also shows that his death is substitutionary.
“for the forgiveness of sins”–This alludes to Isaiah 53:4-6. The prophet Isaiah said, “Surely he has borne our griefs and carried our sorrows; yet we esteemed him stricken, smitten by God, and afflicted. But he was wounded for our transgressions; he was crushed for our iniquities; upon him was the chastisement that brought us peace, and with his stripes we are healed. All we like sheep have gone astray; we have turned–every one–to his own way; and the LORD has laid on him the iniquity of us all.”
Again alluding to Isaiah 53, Jesus teaches that his upcoming death would achieve the reconciliation with God that sinners so desperately needed. The Son’s substitutionary death had a design, a purpose. The Father would crush him in the place of sinners in order that forgiveness for sinners could justly and permanently applied.
In Matthew 26:27-28, as Jesus spoke about the cup, we learn how he would live up to his name that the angel proclaimed in 1:21: “. . . you shall call his name Jesus, for he will save his people from their sins.”
Jesus would bring salvation, saving sinners from their sins.
How will such a feat be achieved?
Through death, his own blood poured out.
His own blood? But the covenant with Moses already prescribes sacrifices.
Yes, but animal sacrifices cannot atone for sin. This will be a new covenant.
How will his death atone for sin?
It will be substitutionary. He will be crushed in our place, bearing our iniquities.
Forgiveness of sins! For how long will this last?
Forgiveness is full and forever. If anyone be in Christ, he is not condemned.