Matthew 26:27

And He took a cup [i.e., probably wine made from fresh or possibly preserved grape juice], gave thanks to God, then passed it to them, saying, "All of you, drink from it;

Mark 14:23-24

Then He took a cup [i.e., probably wine made from fresh or possibly preserved grape juice], and when He had given thanks to God, He passed it to them and they all drank from it.

And in the same way He took [another] cup, after the [Passover] meal, and said, "This cup is [i.e., represents] the New Agreement [i.e., between God and mankind] made by my blood, which is [to be] poured out for you.

1 Corinthians 10:16

Does not the "cup of blessing," which we bless, signify a fellowship with Christ's [physical] blood? [Note: This was the cup used at the close of the Passover meal and was called this because of the prayer of thanksgiving offered for it. Paul refers to such a prayer in connection with its use in the Lord's Supper]. Does not the bread that we break signify a fellowship with Christ's [physical] body?