Used to show that at the Last Supper Jesus instituted the new covenant through his body and blood.
Scripture spotlight
Matthew 26:26-28
bible
26 As they were eating, Jesus took bread, gave thanks for it, and broke it. He gave to the disciples, and said, "Take, eat; this is my body." 27 He took the cup, gave thanks, and gave to them, saying, "All of you drink it, 28 for this is my blood of the new covenant, which is poured out for many for the remission of sins.
Quoted to argue that Jesus explicitly taught his blood of the covenant would be poured out for many for the forgiveness of sins.
Used by the host to rebut the claim that blood atonement is a Pauline invention, since Jesus himself links his blood with the forgiveness of sins at the Last Supper.
Used to argue Jesus instituted a new covenant in his blood, replacing the old covenant framework that included circumcision obligations.
Used to interpret John 6 by appealing to the Last Supper, where Jesus identifies bread and wine with his body and blood given for forgiveness.