Then David ran, and stood over the Philistine, and took his sword, and drew it out of the sheath of it, and killed him, and cut off his head therewith. When the Philistines saw that their champion was dead, they fled.
In those days they would take their time in getting started into a real battle. They'd come and they'd yell and they'd have their shouts, and they'd try to psyche each other out. The children of Israel had been pretty well psyched out by this fellow Goliath, who came out every day for forty days.