Bede the Venerable
Catena Aurea · Markusevangelium 14
And as they did eat, Jesus took bread, and blessed, and brake it, and gave to them, and said, Take, eat: this is my body. And he took the cup, and when he had given thanks, he gave it to them: and they all drank of it. And he said unto them, This is my blood of the new testament, which is shed for many. Verily I say unto you, I will drink no more of the fruit of the vine, until that day that I drink it new in the kingdom of God.
(ubi sup.) When the rites of the old Passover were finished, He passed to the new, in order, that is, to substitute the Sacrament of His own Body and Blood, for the flesh and blood of the lamb. Wherefore there follows: And as they did eat, Jesus took bread; that is, in order to shew that He Himself is that person to whom the Lord swore, Thou art a Priest for ever after the order of Melchizedec. (Ps. 110:4) There follows: And blessed, and brake it.