2 Samuel 13:7

Then David sent home to Tamar, saying, Go now to thy brother Amnon's house, and dress him meat.

Ver. 7. Go now to thy brother Amnon's house.] David might have suspected that there was something more than ordinary in this request of Amnon, that there was vipera sub veprecula, an ill intention in this petition. But God had a purpose to chastise him, and therefore suffereth him to be led blindling to do that which he should shortly repent with every vein of his heart, as we say. Sometimes both grace and wit are asleep in the holiest and wariest breasts.