1 Samuel 21:13
He changed his behavior before them and pretended to be insane in their hands, and scribbled on the doors of the gate, and let his spittle fall down on his beard.
World English Bible (Public Domain)
In context
Before · 1 Samuel 21:11–12
11The servants of Achish said to him, “Isn’t this David the king of the land? Didn’t they sing to one another about him in dances, saying, ‘Saul has slain his thousands, and David his ten thousands’?” 12David laid up these words in his heart, and was very afraid of Achish the king of Gath.
13He changed his behavior before them and pretended to be insane in their hands, and scribbled on the doors of the gate, and let his spittle fall down on his beard.