1 Samuel 17:13, 28

His three oldest sons followed Saul to the war. The first son was Eliab, the second was Abinadab, and the third was Shammah.

When David’s oldest brother Eliab heard David talking with the soldiers, he was angry with David. He asked David, “Why did you come here? Who’s taking care of those few sheep of yours in the desert? I know you are proud and wicked at heart. You came down here just to watch the battle.”