'Brother' in the Bible

Ahijah, who was wearing an ephod, was also there. He was the son of Ahitub, the brother of Ichabod son of Phinehas, son of Eli the Lord’s priest at Shiloh. But the troops did not know that Jonathan had left.

David’s oldest brother Eliab listened as he spoke to the men, and became angry with him. “Why did you come down here?” he asked. “Who did you leave those few sheep with in the wilderness? I know your arrogance and your evil heart—you came down to see the battle!”

He said, ‘Please let me go because our clan is holding a sacrifice in the town, and my brother has told me to be there. So now, if you are pleased with me, let me go so I can see my brothers.’ That’s why he didn’t come to the king’s table.”

Then David asked Ahimelech the Hittite and Joab’s brother Abishai son of Zeruiah, “Who will go with me into the camp to Saul?”“I’ll go with you,” answered Abishai.