1 Samuel 28:7-8

Then said Saul unto his servants, Seek me a woman that hath a familiar spirit, that I may go to her, and inquire of her. And his servants said to him, Behold, there is a woman that hath a familiar spirit at En-dor. And Saul disguised himself, and put on other raiment, and went, he and two men with him, and they came to the woman by night: and he said, Divine unto me, I pray thee, by the familiar spirit, and bring me up whomsoever I shall name unto thee.