2 Samuel 13:8
So Tamar went to her brother Amnon’s house; and he was laid down. And she took flour, and kneaded it, and made cakes in his sight, and did bake the cakes. So Tamar went to her brother Amnon’s house; and he was laid down. And she took flour, and kneaded it, and made cakes in his sight, and did bake the cakes.
Tamar's going to Amnon's house to knead flour and bake cakes in his sight belongs to the account of Amnon's shameful, adulterous, unnatural, incestuous, great crime against his sister Tamar. That crime made Amnon doubly guilty under the law that pronounced death upon the adulterer. David, as father of the firstborn, was self-condemned by his own sin and left the crime unpunished and unrebuked, failing to bring the offender to justice.
Absalom, as the natural protector of the sister so foully wronged, concealed his purpose of revenge for two full years and then had the drunken Amnon slain by his command at a feast of the king's sons. This killing was twofold judgment meted out to David according to his own sentence. The aftermath began with a false message that Absalom had slain all the king's sons, upon which David arose and tore his garments and lay on the earth while his servants stood with clothes rent. It was then revealed that Amnon alone had been slain, with great weeping by the king and all his servants, while Absalom fled to Talmai king of Geshur, his mother's father.