1 Corinthians 11:17-20

But in giving this next instruction, I do not praise you, because when you meet together it is not for the better but for the worse. For, in the first place, when you meet together in church, I hear that there are divisions among you; and in part I believe it, for [doubtless] there have to be factions among you, so that those who are of approved character may be clearly recognized among you. So when you meet together, it is not to eat the Lord’s Supper