1 Samuel (Author Compiled by Isaiah from records of Samuel, David, Nathan, and Gad.)
17:20And David rose up early in the morning, and left the sheep with a keeper, and took his charge and went, as Jesse had commanded him. And he came to the wagon-defence; and the host which was going forth to the battle-array shouted for the fight.
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.