'Brother' in the Bible

But you, why do you criticize your brother? Or you, why do you look down on your brother? For we will all stand before the tribunal of God.

For if your brother is hurt by what you eat, you are no longer walking according to love. Do not destroy that one Christ died for by what you eat.

It is a noble thing not to eat meat, or drink wine, or do anything that makes your brother stumble.

Gaius, who is host to me and to the whole church, greets you. Erastus, the city treasurer, and our brother Quartus greet you.