1 Samuel 18
25 Ref And Saul said, Then say to David, The king has no desire for any bride-price, but only for the private parts of a hundred Philistines so that the king may get the better of his haters. But it was in Saul's mind that David might come to his end by the hands of the Philistines.
26 Ref And when his servants said these words to David, he was well pleased to be the son-in-law of the king. And the days were still not past.
27 Ref So David and his men got up and went, and put to death two hundred of the Philistines; and David took their private parts and gave the full number of them to the king, so that he might be the king's son-in-law. And Saul gave him his daughter Michal for his wife.