2 Samuel 13:26 - Clarke's commentary and critical notes on the Bible

Then said Absalom, If not, I pray thee, let my brother Amnon go with us. And the king said unto him, Why should he go with thee? Let my brother Amnon go - He urged this with the more plausibility, because Amnon was the first-born, and presumptive heir to the kingdom; and he had disguised his resentment so well before, that he was not suspected.