His wife Rebekah was very beautiful. The men of that place asked Isaac about Rebekah. He said, “She is my sister.” He was afraid to tell them Rebekah was his wife. He was afraid the men would kill him so that they could have her.
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.