Once upon a time, when Saul was still king of Israel, in the city of Bethlehem, there was a son of a shepherd named David. David and his seven brothers helped to see his father's flock. Although David is the youngest, he is strong and brave, and he trusts and respects God.
Once, when David looked at the flock, a lion took a lamb out of the flock. David chased it and rescued the lamb from his mouth. David took the lion's beard and killed it. David knew that God helped him win the lion.