David arose, and came to the place where Saul had encamped; and David saw the place where Saul lay, and Abner the son of Ner, the captain of his host: and Saul lay within the place of the wagons, and the people were encamped round about him.
So David is sort of chiding Abner the chief general of Saul, saying, "Hey you know your job is to guard the king, and you aren't doing a good job. You ought to be put to death. Someone came in to destroy the king, and you were just sound asleep. Look where the king's spear is, and the cruse of water."