'Brother' in the Bible

“If he is the father of a violent son who sheds blood, and who does any of these things to a brother

As for his father, because he practiced extortion, robbed his brother, and did that which is not good among his people, behold, he shall die for his sin.

“But as for you, son of man, your people who talk about you by the walls and in the doorways of the houses say one to another, every one to his brother, ‘Come now and hear what the message is that comes from the Lord.’

I will call for a sword against Gog throughout all My mountains,” says the Lord God. “Every man’s (invading soldier’s) sword will be against his brother (ally) [in panic and confusion].

They shall not go to a dead person to defile themselves; except for father or for mother, for son or for daughter, for brother or for sister who has had no husband; they may defile themselves.