Verses with the word sling in the Old Testament (7 verses):

Judges 20:16
Among all this people there were seven hundred chosen men lefthanded; every one could sling stones at an hair breadth, and not miss.

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 17:50
So David prevailed over the Philistine with a sling and with a stone, and smote the Philistine, and slew him; but there was no sword in the hand of David.

1 Samuel 25:29
Yet a man is risen to pursue thee, and to seek thy soul: but the soul of my lord shall be bound in the bundle of life with the LORD thy God; and the souls of thine enemies, them shall he sling out, as out of the middle of a sling.

Proverbs 26:8
As he that bindeth a stone in a sling, so is he that giveth honour to a fool.

Jeremiah 10:18
For thus saith the LORD, Behold, I will sling out the inhabitants of the land at this once, and will distress them, that they may find it so.

Zechariah 9:15
The LORD of hosts shall defend them; and they shall devour, and subdue with sling stones; and they shall drink, and make a noise as through wine; and they shall be filled like bowls, and as the corners of the altar.