1 Samuel 18:25

An hundred foreskins. — Wordsworth’s note here, which he derives from Theodoret, is curious. Foreskins! why not heads? Here is a sign of Saul’s suspicious and malignant spirit. He, judging for himself, impiously suspects that David would go forth and destroy some of the Israelites — Saul’s own subjects — as he himself desired to destroy David, his own deliverer; and the foreskins were required as a proof that they who were killed were not Israelites. Josephus, however, with a strange exaggeration, mentions 600 heads as the price of Michal.