'Brother' in the Bible

But you, why do you make yourself your brother's judge? or again, why have you no respect for your brother? because we will all have to take our place before God as our judge.

Then let us not be judges of one another any longer: but keep this in mind, that no man is to make it hard for his brother, or give him cause for doubting.

And if because of food your brother is troubled, then you are no longer going on in the way of love. Do not let your food be destruction to him for whom Christ went into death.

It is better not to take meat or wine or to do anything which might be a cause of trouble to your brother.

Gaius, with whom I am living, whose house is open to all the church, sends his love, so does Erastus, the manager of the accounts of the town, and Quartus, the brother.