1 Samuel 28:9

9. Wherefore then layest thou a snare for my life We have seen (note introductory to 1 Samuel 28:3) that according to some interpreters the witch knew Saul as soon as he came into her presence, and her words to him are but a device to deceive him and secure herself. The possibility of this cannot be denied. She might have recognised his stately form though in disguise, or possibly some secret sympathizer with her craft might have advised her of the king’s approach. But it is more in harmony with the narrative to understand that she knew him not until she entered the clairvoyant state. Her words in this verse virtually charge Saul with a purpose of convicting her of sorcery that he might bring her to capital punishment.