The priest answered David, and said, There is no common bread under my hand, but there is holy bread; if only the young men have kept themselves from women.
Now it does definitely declare that David was afraid of Achish. The fear of man can oftentimes cause a person to act like a fool. It brings a snare. So my brave David, he's not afraid of the giant, he's afraid of the king. So acting like a madman, he's reduced to a man with spit running down his beard and scrabbling on the doors and gates, but he did escape out of the hand of Achish. "