Luke 22:20
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.
Luke 22:17-18
Then Jesus took a cup [Note: This was one of the cups partaken of during the Passover meal], and after giving thanks to God [for it], He said, "Take this and share it among yourselves,
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?
1 Corinthians 10:21
You cannot drink [both] the cup of the Lord and the cup of evil spirits [i.e., and still be acceptable to God]. You cannot share in [both] the Lord's table and the table of evil spirits [and still be acceptable to God].
1 Corinthians 11:25-27
In the same way [He took] the cup also, after supper, and said, "This cup [i.e., its contents] represents the New Agreement [ratified] by my blood. [Continue to] do this, whenever you people drink from it, in memory of me."