So David got up early in the morning, left the flock with a keeper, loaded up, and set out as Jesse had instructed him. He reached the camp as the army was marching out to its position and shouting the battle cry.
Forty days the two armies lay encamped facing one another, each advantageously posted, but neither forward to engage. Either they were parleying and treating of an accommodation or they were waiting for recruits; and perhaps there were frequent skirmishes between small detached parties.
Commenting on 1 Samuel 17:12-30
And David rose up early in the morning,.... Being very ready and eager to obey his father's orders, and visit his brethren: and left the sheep with a keeper; which showed his care and faithfulness in the discharge of his office; he was not unmindful of his father's sheep, any more than of his commands: and took; the ephah of parched corn, the ten loaves...
David left the sheep with a keeper--This is the only instance in which the hired shepherd is distinguished from the master or one of his family. trench--some feeble attempt at a rampart. It appears (see Margin) to have been formed by a line of carts or chariots, which, from the earliest times, was the practice of nomad people.