1 Corinthians 10:16
16 nThe cup of blessing that we bless, is it not a participation in the blood of Christ? oThe bread that we break, is it not a participation in the body of Christ?
1 Corinthians 11:25
25 In the same way also he took the cup, after supper, saying, “This cup is the xnew covenant in my blood. Do this, as often as you drink it, in remembrance of me.”