sentences:  It is possible that King David's name during his boyhood and youth was Elhanan, and his father Jesse, likewise, had the earlier names of Jaare-Oregim and Jair.Although he was not known as "David" until later, one Biblical account (1 Samuel chapter 17) tells the story of his slaying the Philistine giant Goliath, while still calling him David.In 2 Samuel 21