'Brother' in the Bible

As for his father, because he cruelly oppressed, robbed his brother, and did that which is not good among his people, behold, he shall die in his iniquity.

As for you, son of man, the children of your people talk of you by the walls and in the doors of the houses, and speak one to another, everyone to his brother, saying, Please come and hear what is the word that comes forth from Yahweh.

I will call for a sword against him to all my mountains, says the Lord Yahweh: every man's sword shall be against his brother.

They shall go in to no dead person to defile themselves; but for father, or for mother, or for son, or for daughter, for brother, or for sister who has had no husband, they may defile themselves.