Among all this people there were seven hundred chosen men, left-handed; every one could sling stones at a hair's breadth, and not miss.
1 Samuel 17:50
So David prevailed over the Philistine with a sling and with a stone, and struck the Philistine, and slew him; but there was no sword in the hand of David.
1 Samuel 17:49
And David put his hand in his bag, and took there a stone, and slung it, and struck the Philistine in his forehead, that the stone sunk into his forehead; and he fell upon his face to the earth.
As he that binds a stone in a sling, so is he that gives honor to a fool.
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 pouch; and his sling was in his hand: and he drew near to the Philistine.