1 Samuel 17:38-43
English Standard Version
Chapter 17
38Then Saul clothed David with his armor. He put a helmet of bronze on his head and clothed him with a coat of mail, 39and David strapped his sword over his armor. And he tried in vain to go, for he had not tested them. Then David said to Saul, "I cannot go with these, for I have not tested them." So David put them off. 40Then he took his staff in his hand and chose five smooth stones from the brook and put them in his shepherd 's pouch. His sling was in his hand, and he approached the Philistine.
41And the Philistine moved forward and came near to David, with his shield-bearer in front of him.
42And when the Philistine looked and saw David, he disdained him, for he was but a youth, ruddy and handsome in appearance.
43And the Philistine said to David, "Am I a dog, that you come to me with sticks?" And the Philistine cursed David by his gods.