David did this many times. Each time Achish asked David where he fought and took those things. David said, “I fought against the southern part of Judah,” or “I fought against the southern part of Jerahmeel,” or “I fought against the southern part of the Kenizzites.”
so he pretended to be crazy in front of Achish and his officers. While David was with them, he acted like a crazy man. He spat on the doors of the gate. He let spit fall down his beard.
David answered him, “The king gave me a special order. He told me, ‘Don’t let anyone know about this mission. No one must know what I told you to do.’ I told my men where to meet me.
Then Isaac said, “Bring me the food. I will eat it and bless you.” So Jacob gave him the food, and he ate it. Then Jacob gave him some wine, and he drank it.
The old prophet lied to him and said, “But I am a prophet like you. And an angel from the Lord came to me and told me to bring you home and give you something to eat and drink.”