1 Samuel 17:13

Context
17:13 Jesse’s three oldest sons had followed Saul to war. The names of the ¹  three sons who went to war were Eliab, his firstborn, Abinadab, the second oldest, and Shammah, the third oldest.

1 Samuel 17:28

Context

17:28 When David’s ²  oldest brother Eliab heard him speaking to the men, he became angry ³  with David and said, “Why have you come down here? To whom did you entrust those few sheep in the desert? I am familiar with your pride and deceit! ⁴  You have come down here to watch the battle!”