The three eldest sons of Jesse had gone after Saul to the battle: and the names of his three sons who went to the battle were Eliab the firstborn, and next to him Abinadab, and the third Shammah.
Part of the reward for defeating Goliath that Saul had promised was that the victor’s family would be tax free in Israel (1 Samuel 17:25). [Note: See McCarter, p. 304; and Shemaryahu Talmon, King, Cult, and Calendar in Ancient Israel: Collected Studies, pp. 65-66.] The giving of the leader’s daughter in marriage to a valiant warrior was not without precedent in Israel (cf. Caleb’s challenge in Joshua 15:16).