1 Samuel 28:12

When the woman saw Samuel, she cried with a loud voice. Evidently the last thing that she had expected was that anything else should happen than the usual illusion by which she imposed upon her victims; nor is it certain that anything else did happen. Her assertion that she saw Samuel was probably false; and it was in feigned excitement that she cried out, Why hast thou deceived me? for thou art Saul. She could not but have noticed the tall stature, the dignified manner, and also the intense excitement of her strange visitor; and when he bade her call up the spirit of Samuel, she must have been dull indeed not to know who the stranger was.