1 Samuel 21:13

And he altered his mouth before them, and he slipped down between their hands. And he stumbled against the doors of the gate. And his spit flowed down his beard

Other versions

King James Version

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

English Standard Version

So he changed his behavior before them and pretended to be insane in their hands and made marks on the doors of the gate and let his spittle run down his beard.

New International Version

So he pretended to be insane 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.