'Brother' in the Bible

As for his father, because he practices extortion, robs his brother, and does what is not good among his people, he will die for his iniquity.

I will call for a sword to attack Gog on all my mountains, declares the sovereign Lord; every man's sword will be against his brother.

"'They must not come near a dead person or they will be defiled; however, for father, mother, son, daughter, brother or sister, they may defile themselves.