1 Samuel 21:12-14

New International Version

¹² David took these words to heart and was very much afraid of Achish king of Gath. ¹³ So he pretended to be insane^(A) in their presence; and while he was in their hands he acted like a madman, making marks on the doors of the gate and letting saliva run down his beard.

¹⁴ Achish said to his servants, “Look at the man! He is insane! Why bring him to me?