Flavius Josephus, Antiquities of the Jews
William Whiston, A.M., Ed.

[337] When Saul heard this, he could not speak for grief, and fell down on the floor, whether it were from the sorrow that arose upon what Samuel had said, or from his emptiness, for he had taken no food the foregoing day nor night, he easily fell quite down: and when with difficulty he had recovered himself, the woman would force him to eat, begging this of him as a favor on account of her concern in that dangerous instance of fortune-telling, which it was not lawful for her to have done, because of the fear she was under of the king, while she knew not who he was, yet did she undertake it, and go through with it; on which account she entreated him to admit that a table and food might be set before him, that he might recover his strength, and so get safe to his own camp. And when he opposed her motion, and entirely rejected it, by reason of his anxiety, she forced him, and at last persuaded him to it. Now she had one calf that she was very fond of, and one that she took a great deal of care of, and fed it herself; for she was a woman that got her living by the labor of her own hands, and had no other possession but that one calf; this she killed, and made ready its flesh, and set it before his servants and himself. So Saul came to the camp while it was yet night.