1 Samuel 17:14

Overview - 1 Samuel 17
1	The armies of the Israelites and Philistines being ready to battle,
4	Goliath challenges a combat.
12	David, sent by his father to visit his brethren, takes the challenge.
28	Eliab chides him.
30	He is brought to Saul;
32	shews the reason of his confidence;
38	and slays the giant.
55	Saul takes notice of David.

1 Samuel 17:14  (King James Version)
And David was the youngest: and the three eldest followed Saul.