To the trench, i.e. to the camp or army which was there intrenched. Shouted for the battle; as the manner was, both to animate themselves, and to terrify their enemies.
Related Commentaries of 1 Samuel 17:20
1 Samuel 17:20
20 And 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,e as the host was going forth to the fight, and shouted for the battle.