And he said unto her, What form is he of? And she said, An old man cometh up; and he is covered with a mantle. And Saul perceived that it was Samuel, and he stooped with his face to the ground, and bowed himself. An old man cometh up, and he is covered with a mantle - This seems to have been a second apparition; she cannot mean that she had seen gods ascending out of the earth, and these gods were like an old man with a mantle. The angelic appearance first mentioned prepared the way for Samuel; and the whole was done so as to show to the woman that her art had not prevailed in the present instance, and that what was now taking place was wholly independent of her incantations.
Saul perceived that it was Samuel - The description was suitable to his person and clothing.