The Son of Man came eating and drinking, and you say, ‘Look at him! He eats too much and drinks too much wine, and he is a friend of tax collectors and sinners!’
So a person who eats the bread or drinks the cup of the Lord in a way that is not worthy of it will be guilty of sinning against the body and the blood of the Lord.
My brothers and sisters, above all, do not use an oath when you make a promise. Don’t use the name of heaven, earth, or anything else to prove what you say. When you mean yes, say only yes, and when you mean no, say only no so you will not be judged guilty.