40 He took his staff in his hand, and chose for himself five smooth stones out of the brook, and put them in the shepherd’s bag which he had, even in his wallet. His sling was in his hand; and he drew near to the Philistine. 41 The Philistine came on and drew near to David; and the man who bore the shield went before him. 42 When the Philistine looked about, and saw David, he disdained him; for he was but a youth, and ruddy, and withal of a fair face. 43 The Philistine said to David, “Am I a dog, that you come to me with sticks?” The Philistine cursed David by his gods. 44 The Philistine said to David, “Come to me, and I will give your flesh to the birds of the sky, and to the animals of the field.” 45 Then said David to the Philistine, “You come to me with a sword, and with a spear, and with a javelin: but I come to you in the name of Yahweh of Armies, the God of the armies of Israel, whom you have defied. 46 Today, Yahweh will deliver you into my hand. I will strike you, and take your head from off you. I will give the dead bodies of the army of the Philistines this day to the birds of the sky, and to the wild animals of the earth; that all the earth may know that there is a God in Israel, 47 and that all this assembly may know that Yahweh doesn’t save with sword and spear: for the battle is Yahweh’s, and he will give you into our hand.”

Matthew Henry's Commentary on 1 Samuel 17:40-47

Commentary on 1 Samuel 17:40-47

(Read 1 Samuel 17:40-47)

The security and presumption of fools destroy them. Nothing can excel the humility, faith, and piety which appear in David's words. He expressed his assured expectation of success; he gloried in his mean appearance and arms, that the victory might be ascribed to the Lord alone.