'Brother' in the Bible

Then the anger of the Lord burned against Moses, and He said, “Is there not your brother Aaron the Levite? I know that he speaks fluently. And moreover, behold, he is coming out to meet you; when he sees you, he will be glad in his heart.

Then the Lord said to Moses, “See, I make you as God to Pharaoh, and your brother Aaron shall be your prophet.

You shall speak all that I command you, and your brother Aaron shall speak to Pharaoh that he let the sons of Israel go out of his land.

“You shall not pervert the justice due to your needy brother in his dispute.

“Then bring near to yourself Aaron your brother, and his sons with him, from among the sons of Israel, to minister as priest to Me—Aaron, Nadab and Abihu, Eleazar and Ithamar, Aaron’s sons.

You shall make holy garments for Aaron your brother, for glory and for beauty.

These are the garments which they shall make: a breastpiece and an ephod and a robe and a tunic of checkered work, a turban and a sash, and they shall make holy garments for Aaron your brother and his sons, that he may minister as priest to Me.

You shall put them on Aaron your brother and on his sons with him; and you shall anoint them and ordain them and consecrate them, that they may serve Me as priests.

He said to them, “Thus says the Lord, the God of Israel, ‘Every man of you put his sword upon his thigh, and go back and forth from gate to gate in the camp, and kill every man his brother, and every man his friend, and every man his neighbor.’”

Then Moses said, “Dedicate yourselves today to the Lord—for every man has been against his son and against his brother—in order that He may bestow a blessing upon you today.”