Samuel
1 Samuel 17:40BSB·traditional attribution

And David took his staff in his hand, selected five smooth stones from the brook, and put them in the pouch of his shepherd’s bag. And with his sling in hand, he approached the Philistine.

Matthew Henry Presbyterian @wholebiblehenry

We are now coming near this famous combat, and have in these verses the preparations and remonstrances made on both sides. I. The preparations made on both sides for the encounter. The Philistine was already fixed, as he had been daily for the last forty days. Well might he go with his armour, for he had sufficiently proved it.

Commenting on 1 Samuel 17:40-47

John Gill Reformed Baptist @doctorgill

And he took his staff in his hand,.... His shepherd's staff, which he used in keeping his father's sheep, and chose rather to appear in the habit of a shepherd than of a soldier: and chose him five smooth stones out of the brook; which ran in the valley, which became smooth by lying in the water running over them; and which being smooth were...

Jamieson-Fausset-Brown Reformed @jfbcommentary

brook--wady. bag--or scrip for containing his daily food. sling--The sling consisted of a double rope with a thong, probably of leather, to receive the stone. The slinger held a second stone in his left hand. David chose five stones, as a reserve, in case the first should fail.