1 Corinthians 10:16
"The cup of blessing which we bless, is it not the communion of the blood of Christ? The bread which we break, is it not the communion of the body of Christ?"
Cross References (ranked by relevance)
And they continued stedfastly in the apostles’ doctrine and fellowship, and in breaking of bread, and in prayers.
For we are made partakers of Christ, if we hold the beginning of our confidence stedfast unto the end;
And they, continuing daily with one accord in the temple, and breaking bread from house to house, did eat their meat with gladness and singleness of heart,
God is faithful, by whom ye were called unto the fellowship of his Son Jesus Christ our Lord.
And upon the first day of the week, when the disciples came together to break bread, Paul preached unto them, ready to depart on the morrow; and continued his speech until midnight.
For by one Spirit are we all baptized into one body, whether we be Jews or Gentiles, whether we be bond or free; and have been all made to drink into one Spirit.
When he therefore was come up again, and had broken bread, and eaten, and talked a long while, even till break of day, so he departed.