Saul replied, “Say to David, ‘The king desires no other dowry but a hundred Philistine foreskins as revenge on his enemies.’” But Saul intended to cause David’s death at the hands of the Philistines.
Jewish Publication Society of America Version (JPS1917) - 1 Samuel 18:25 >And Saul said: 'Thus shall ye say to David: The king desireth not any dowry, but a hundred foreskins of the Philistines, to be avenged of the king's enemies.' For Saul thought to make David fall by the hand of the Philistines.