1 Samuel (Author Compiled by Isaiah from records of Samuel, David, Nathan, and Gad.)
17:13and the three eldest sons of Jesse go, they have gone after Saul to battle; and the name of his three sons who have gone into battle are Eliab the first-born, and his second Abinadab, and the third Shammah.
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.