1 Samuel 19:23; 1 Samuel 19:24

23 He proceeded there to Naioth in Ramah; and the Spirit of God came upon him also, so that he went along prophesying continually until he came to Naioth in Ramah.

24 He also stripped off his clothes, and he too prophesied before Samuel and lay down naked all that day and all that night. Therefore they say, "Is Saul also among the prophets?"