'Brethren' in the Bible

Your wives, your children, and your cattle shall [be allowed to] stay in the land which Moses gave you on this [eastern] side of the Jordan, but you shall go across [the river] before your brothers (the other tribes) armed for battle, all your brave warriors, and you shall help them [conquer and take possession of their land],

until the Lord gives your brothers rest, as He has given you, and they also take possession of the land which the Lord your God is giving them. Then you shall [be allowed to] return to your own land, and take possession of that which Moses the servant of the Lord gave you beyond the Jordan toward the sunrise.”

So the young men, the spies, went in and brought out Rahab and her father and her mother and her brothers and everything that she had; they also brought out all her relatives and allowed them to stay outside the camp of Israel [at Gilgal during the time required for ceremonial cleansing].

My brothers (fellow spies) who went up with me made the heart of the people melt with fear; but I followed the Lord my God completely.

They came before Eleazar the priest and before Joshua the son of Nun and before the leaders and said, “The Lord commanded Moses to give us an inheritance among our brothers.” So according to the command of the Lord Joshua gave them an inheritance among their father’s brothers.

You have not deserted your brothers these many days to this day, but have [carefully] kept the obligation of the commandment of the Lord your God.

And now the Lord your God has given rest to your brothers, as He has promised them; so turn now and go to your tents, to the land of your possession, which Moses the servant of the Lord gave you beyond the [east side of the] Jordan.

Now to the one-half of the tribe of Manasseh Moses had given a possession in Bashan, but to the other half Joshua gave a possession on the west side of the Jordan among their brothers. So when Joshua sent them away to their tents, he blessed them,

and he said to them, “Return to your tents with great riches and with very much livestock, with silver, gold, bronze, iron, and with very many clothes; divide the spoil of your enemies with your brothers (fellow tribesmen).”