I think Scripture must contain something upon this subject.
On the day of the Last Supper, Jesus raised this custom (which had hitherto been no more than a symbolical and figurative rite) to the dignity of the holiest of sacraments.

One of the charges brought before Caiphas, on occasion of the treason of Judas, was, that Jesus had introduced a novelty into the Paschal ceremonies, but Nicodemus proved from Scripture that it was an ancient practice.
Jesus was seated between Peter and John, the doors were closed, and everything was done in the most mysterious and imposing manner.

When the chalice was taken out of its covering, Jesus prayed, and spoke to his Apostles with the utmost solemnity.

I saw him giving them an explanation of the Supper, and of the entire ceremony, and I was forcibly reminded of a priest teaching others to say Mass.
He then drew a species of shelf with grooves from the boars on which the jars stood, and taking a piece of white linen with which the chalice was covered, spread it over the board and shelf.

I then saw him lift a round plate, which he placed on this same shelf, off the top of the chalice.