This is my blood of the covenant

Matthew 26:14-30
Judas agrees to betray Jesus by thirty silver coins.
Jesus knew Judas will betray him on the table.
Jesus took bread gave thanks and broke it, and gave it to his disciples, saying,"Take and eat; this is my body."
Then he took the cup, gave thanks and offered it to them, saying, "Drink fro it, all of you. This is my blood of the covenant, which is poured out for many for the forgiveness of sins."
Others said "Surely not I, Lord?" but Judas said "Surely not I, Rabbi?" Judas did not look Jesus as the Lord.
On the first evening of the festival, Jesus and his close friends meet as a family to ear the Passover meal together - and the old Passover is transformed into the Lord's Supper as the Lamb of God. prepares to lay down his life for the world.
This is as the scriptures said it would be, but that does not remove the guilt from Judas. (V24)
Why?
At this crucial moment, Judas, perhaps disillusioned(幻滅) about the kind of Messiah Jesus has turned out to be, or for some other motive, unexplained, changes sides.
To the familiar word of the blessing: Blessed art Thou, O Lord out God, King of the Universe, who bringest forth bread from the earth, Jesus adds his own startling words, 'this is my body'. He is going to be killed.
And by his death a new covenant will be made, in place of the old covenant between God and Israel made at the exodus. His blood is 'poured out for many for the forgiveness of sins'. By eating ad drinking, his disciples share in the benefits of his sacrifice.
How?
Jesus is Messiah, his blood poured out for many for the forgiveness of my sins. Thank you Jesus!