On the first day of the week, when the talmidim were gathered together to break bread, Sha'ul talked with them, intending to depart on the next day, and continued his speech until midnight.
The cup of blessing which we bless, isn't it a communion of the blood of Messiah? The bread which we break, isn't it a communion of the body of Messiah?
Behold, I have taught you statutes and ordinances, even as the LORD my God commanded me, that you should do so in the midst of the land where you go in to possess it.