1 Corinthians 10:14-17
14 Therefore, my beloved, flee from idolatry. 15 I speak as to wise people; you then, judge what I say. 16 Is the cup of blessing which we bless not a sharing in the blood of Christ? Is the bread which we break not a sharing in the body of Christ? 17 Since there is one loaf, we who are many are one body; for we all partake of the one loaf.
1 Corinthians 11:23-26
23 For I received from the Lord that which I also delivered to you, that the Lord Jesus, on the night when He was betrayed, took bread; 24 and when He had given thanks, He broke it and said, “This is My body, which is for you; do this in remembrance of Me.” 25 In the same way He also took the cup after supper, saying, “This cup is the new covenant in My blood; do this, as often as you drink it, in remembrance of Me.” 26 For as often as you eat this bread and drink the cup, you proclaim the Lord’s death until He comes.