1 Corinthians 11:25; Matthew 26:27-28

25 In the same way also he took the cup, after supper, saying, This cup is the new covenant in my blood. Do this, as often as you drink it, in remembrance of me.

27 And he took a cup, and when he yhad given thanks he gave it to them, saying, Drink of it, all of you, 28 for xthis is my zblood of the1 covenant, which is poured out for amany bfor the forgiveness of sins.