‘And Saul and the men of Israel were gathered together, and pitched by the valley of Elah, and set the battle in array against the Philistines.’
—1 Samuel 17:40

‘And he took his staff in his hand, and chose him five smooth stones out of the brook, and put them in a shepherd's bag which he had, even in a scrip; and his sling was in his hand: and he drew near to the Philistine.’
—1 Samuel 17:2