1 Samuel 21:11-13

Darby Translation

¹¹ And the servants of Achish said to him, Is not this David the king of the land? did they not sing one to another of him in dances, saying, Saul has smitten his thousands, and David his ten thousands?

¹² And David took to heart these words, and was much afraid of Achish the king of Gath.

¹³ And he changed his behaviour before them, and feigned himself mad in their hands, and scratched on the doors of the gate, and let his spittle fall down on his beard.