20 In still another battle, which took place at Gath, there was a huge man with six fingers on each hand and six toes on each foottwenty-four in all. 21 When he taunted Israel, Jonathan son of Shimeah, David's brother, killed him.
22 These four were descendants of Rapha in Gath, and they fell at the hands of David and his men.*****Now it concerns a war of David, when he is king, against the Philistines.
Its likely there is a grain of truth in that story, which boils down to in a war, the Israelites fielded a slinger as champion who took down someone who had a reputation as very dangerous.
(I suppose this has been noted before, but I don't what the commentaries say on this).I think he choose 5 stones because he knew that thats the maximum of stones he could sling(in case he misses) until goliath puts an end to the fight. I was in the food store, (yeah the food store,) the other day and was looking at a rack of movies while waiting at the checkout and there was a new film called DAVID, being the story of King David and on the cover they showed a sling...