1 Samuel 17:20-24

So David got up early in the morning and left the flock with a keeper, and took the supplies and went as Jesse had commanded him. And he came to the entrenchment encircling the camp while the army was going out in battle formation, shouting the war cry.

Israel and the Philistines drew up in battle formation, army against army.

Then David left the baggage in the care of the baggage keeper and ran to the battle line. And he entered and greeted his brothers.

As he was speaking with them, behold, the champion, the Philistine from Gath named Goliath, was coming up from the army of the Philistines, and he spoke these same words; and David heard him.

When all the men of Israel saw the man, they fled from him and were very fearful.