Bible Verses About Malingering: Instance of: David feigning madness

And he changed his countenance before them, and slipt down between their hands: and he stumbled against the doors of the gate, and his spittle ran down upon his beard.

And Achis said to his servants: You saw the man was mad: why have you brought him to me?

Have we need of mad men, that you have brought in this fellow, to play the madman in my presence? shall this fellow come into my house?