Mark 14:25

(ubi sup.) Or else, Isaiah testifies that the synagogue is called the vine or the vineyard of the Lord, saying, The vineyard of the Lord of hosts is the house of Israel. (Is. 5:7) The Lord therefore when about to go to His Passion, says, I will drink no more of the fruit of the vine, as if He had said openly, I will no longer delight in the carnal rites of the synagogue, in which also these rites of the Paschal Lamb have held the chief place. For the time of my resurrection shall come, that day shall come, when in the kingdom of heaven, that is, raised on high with the glory of immortal life, I will be filled with a new joy, together with you, for the salvation of the same people born again of the fountain of spiritual grace.

As if He had said, I will not drink wine until the resurrection; for He calls His resurrection the kingdom, as He then reigned over death. But after His resurrection He ate and drank with His disciples, showing that it was He Himself who had suffered. But He drank it new, that is, in a new and strange manner, for He had not a body subject to suffering, and requiring food, but immortal and incorruptible. We may also understand it in this way. The vine is the Lord Himself, by the offspring of the vine is meant mysteries, and the secret understanding, which He Himself begets, who teaches man knowledge. But in the kingdom of God, that is, in the world to come, He will drink with His disciples mysteries and knowledge, teaching us new things, and revealing what He now hides.

For it does not cleanse all. It goes on: 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. But we must consider that here the Lord changes the sacrifice without changing the time; so that we never celebrate the Cæna Domini before the fourteenth moon. He who celebrates the resurrection on the fourteenth moon, will celebrate the Cæna Domini on the eleventh moon, which was never done in either Old or New Testament.