So David took the spear and the cruse of water from Saul's bolster; and they gat them away, and no man saw it, nor knew it, neither awaked: for they were all asleep; because a deep sleep from the LORD was fallen upon them. David took the spear and the cruse - The spear, we have already seen, was the emblem of power and regal dignity. But it is usual, in Arab camps, for every man to have his lance stuck in the ground beside him, that he may be ready for action in a moment. The cruse of water resembled, in some measure, the canteens of our soldiers. In such a climate, where water was always scarce, it was necessary for each man to carry a little with him, to refresh him on his march.
A deep sleep from the Lord - It is the same word which is used, Genesis 2:21, to describe the sleep which God caused to fall upon Adam, when he formed Eve out of his side.