1 Samuel 28:8

And Saul disguised himself, by taking off all the garments and insignia indicating his rank, and put on other raiment; and he went, and two men with him, as his guides and his body-guard. And they came to the woman by night, partly to escape the notice of the Israelites themselves, partly that of the Philistine outposts. And he said, when they had reached the woman's house, I pray thee, divine unto me by the familiar spirit, she was to uncover the future for him by making use of necromancy, and bring me him up whom I shall name unto thee.