1 Samuel 17:40-44

Then he took his staff in his hand and chose for himself five smooth stones from the brook, and put them in the shepherd’s bag which he had, that is, in his shepherd’s pouch, and his sling was in his hand; and he approached the Philistine.

Then the Philistine came and approached David, with the shield-bearer in front of him.

When the Philistine looked and saw David, he was contemptuous of him; for he was only a youth, and reddish, with a handsome appearance.

So the Philistine said to David, “Am I a dog, that you come to me with sticks?” And the Philistine cursed David by his gods.

The Philistine also said to David, “Come to me, and I will give your flesh to the birds of the sky and the wild animals.”