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, and went, as Jesse had commanded him; and he came to the trench, as the host was going forth to the fight, and shouted for the battle.
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.