Isaías 63

Isaías 63:3

And does not also the Holy Spirit, speaking in Isaiah, testify the same thing concerning the passion of the Lord, saying, "Why are your vestments red and your garments as from treading the wine press full and well-trodden?" For can water make vestments red, or is it water that is trodden by the feet in the winepress or forced out by the press? The mention of wine is placed there, indeed, that in the wine the blood of the Lord may be known and that which was afterward manifested in the chalice of the Lord might be foretold by the prophets who announced it. The treading and pressing of the winepress are also spoken of, since wine cannot be prepared for drinking in any other way unless the cluster of grapes is first trodden and pressed. Thus, we could not drink the blood of Christ unless Christ had first been trodden on and pressed, and unless he had first drunk the chalice of which he should also give believers to drink. — Epistle LXII:7