'Brother' in the Bible

Along with him were Ahitub's son Ahijah, Ichabod's brother, who was Phineas' son and a grandson of Eli the priest of the LORD at Shiloh, who was carrying the ephod. The people did not know that Jonathan had gone.

Eliab his oldest brother heard him talking to the men. Eliab was angry with David and said, "Why did you come down here? And who did you leave those few sheep with in the wilderness? I know your insolence and wicked intentions. You came down just to see the battle!"

He said, "Please let me go because our family has a sacrifice in the town, and my brother has ordered me to come. Now, if it's acceptable to you, please let me get away so I can see my brothers.' That's the reason he didn't come to the king's table."

David said to Ahimelech the Hittite, and to Joab's brother Abishai, Zeruiah's son, "Who will go down with me to Saul in the camp?" Abishai said, "I'll go down with you."