'Brother' in the Bible

Then the Lord’s anger burned against Moses, and He said, “Isn’t Aaron the Levite your brother? I know that he can speak well. And also, he is on his way now to meet you. He will rejoice when he sees you.

The Lord answered Moses, “See, I have made you like God to Pharaoh, and Aaron your brother will be your prophet.

You must say whatever I command you; then Aaron your brother must declare it to Pharaoh so that he will let the Israelites go from his land.

“Have your brother Aaron, with his sons, come to you from the Israelites to serve Me as priest—Aaron, his sons Nadab and Abihu, Eleazar and Ithamar.

Make holy garments for your brother Aaron, for glory and beauty.

These are the garments that they must make: a breastpiece, an ephod, a robe, a specially woven tunic, a turban, and a sash. They are to make holy garments for your brother Aaron and his sons so that they may serve Me as priests.

Put these on your brother Aaron and his sons; then anoint, ordain, and consecrate them, so that they may serve Me as priests.

He told them, “This is what the Lord, the God of Israel, says, ‘Every man fasten his sword to his side; go back and forth through the camp from entrance to entrance, and each of you kill his brother, his friend, and his neighbor.’”

Afterward Moses said, “Today you have been dedicated to the Lord, since each man went against his son and his brother. Therefore you have brought a blessing on yourselves today.”