1 Samuel 19:22-26

Then he went to Ramah himself and came as far as the large well that is in Secu; and he asked, “Where are Samuel and David?” And someone said, “Behold, they are at Naioth in Ramah.”

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

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