1 Samuel 17:13-14

13 The three eldest sons of Jesse had followed Saul to the battle; the names of his three sons who went to the battle were Eliab the firstborn, and next to him Abinadab, and the third Shammah.
14 David was the youngest; the three eldest followed Saul,
New Revised Standard Version Bible, copyright 1989, Division of Christian Education of the National Council of the Churches of Christ in the United States of America. Used by permission. All rights reserved.