1 Samuel 17:13, 28

His three older sons had followed Saul into battle. The names of his three sons who went to battle were Eliab, the firstborn; next, Abinadab; and third, Shammah.

Now Eliab his oldest brother heard what he said to the men; and Eliab’s anger burned against David and he said, “Why have you come down here? With whom did you leave those few sheep in the wilderness? I know your presumption (overconfidence) and the evil of your heart; for you have come down in order to see the battle.”