1 Samuel 19:22-24

22Then he himself went to Ramah, and when he arrived at the great cistern in Secu, he asked, “Where are Samuel and David?” Someone answered, “Look, they are at Naioth at Ramah.”

23So he proceeded there, to Naioth at Ramah, and the Ruach of God came upon him as well, and he prophesied as he kept walking until he arrived to Naioth at Ramah.

24Then he too stripped off his clothes, and he too prophesied before Samuel, and lay down naked all that day and all that night. That is why people were saying, “Is Saul too among the prophets?”