First Book of Kings (Author Compiled by Isaias from records of Samuel, David, Nathan, and Gad.)
Chapter 17
40And he took his staff, which he had always in his hands: and chose him five smooth stones out of the brook, and put them into the shepherd's scrip, which he had with him, and he took a sling in his hand, and went forth against the Philistine.
Original from Project Gutenberg - Massive cleanup of OCR problems and editing done locally.