2 Samuel 13:16
And she said unto him, There is no cause: this evil in sending me away is greater than the other that thou didst unto me. But he would not hearken unto her. And she said unto him, There is no cause: this evil in sending me away is greater than the other that thou didst unto me. But he would not hearken unto her.
This verse belongs to the account of Amnon the first-born and his shameful, incestuous crime against his sister Tamar. That crime was adultery punishable by death under the law, and because it was unnatural it made him doubly guilty. David permitted it to pass unpunished and unrebuked, failing as a father to bring the offender to justice because his own sin left him self-condemned.
The crime led to Absalom taking revenge by killing Amnon. Absalom, as the natural protector of his sister so foully wronged, concealed his purpose of revenge for two full years and then struck surely, having the drunken Amnon slain by his command at a feast of the king's sons. Through this wrong David felt the bitter fruits and judgment of his own sin. Amnon's death was twofold judgment meted out to David, part of the four sons who must fall for the father's sin according to David's own sentence.