As David and Goliath met at the fight line. David took a stone from his pocket and put it in his sling and threw it, struck Goliath on his temple, and he fell all over to the ground. David at that point took Goliath's sword, murdered him, and cut his take off (1 Samuel 17:48-51).

On account of David's triumph over the Goliath, the Israel armed force won the Philistines and won that fight, we can set up that the monsters we run over are huge yet they are not "Greater" than God that is within you.