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17But in giving you this command, I don`t praise you, that you come together not for the better but for the worse. 18For first of all, when you come together in the assembly, I hear that divisions exist among you, and I partly believe it. 19For there must be also factions among you, that those who are approved may be revealed among you. 20When therefore you assemble yourselves together, it is not possible to eat the Lord`s supper. 21For in your eating each one takes his own supper before others. One is hungry, and another is drunken. 22What, don`t you have houses to eat and to drink in? Or do you despise God`s assembly, and put them to shame who don`t have? What will I tell you? Will I praise you? In this I don`t praise you. 23For I received from the Lord that which also I delivered to you, that the Lord Jesus on the night in which he was betrayed took bread. 24When he had given thanks, he broke it, and said, "Take, eat. This is my body, which is broken for you. Do this in memory of me." 25In 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, in memory of me." 26For as often as you eat this bread, and drink this cup, you proclaim the Lord`s death until he comes. 27Therefore whoever eats this bread or drinks the Lord`s cup in an unworthy manner, will be guilty of the body and the blood of the Lord.
1 Corinthians 11:17-27 (WEB)