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?

And Absalom said: If thou wilt not come, at least let my brother Amnon, I beseech thee, come with us. And the king said to him: It is not necessary that he should go with thee.

Then Absalom said, If you will not go, then let my brother Amnon go with us. And the king said to him, Is there any reason for him to go with you?

And Absalom said, "If you are not willing to come, I beg you, at least let my brother Amnon come with us." And the king said to him, "It is not necessary that he go with you."

He mentions Amnon as being the king's first-born. If he could not have the king's company, let him at least have that of the heir apparent, and the king's other sons.

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.

Then said Absalom, If not, I pray thee, let my brother (l) Amnon go with us. And the king said unto him, Why should he go with thee?
(l) Pretending to the king that Amnon was most dear to him.

Then said Absalom, if not,.... If it is not thy pleasure to go with me, if I cannot have the honour of thy company:
I pray thee, let my brother Amnon go with us; let me have the next mark of honour that can be given me, the presence of the king's eldest son, and heir to the crown; he seems to express affection for him, and a particular desire of his company, as if all ill will towards him was removed from him, and this would be a public declaration of reconciliation between them:
and the king said unto him, why should he go with thee? he particularly, he more than any other; David seems to have suspected some design, and it is strange he should not; and yet if he had, it is much, notwithstanding the pressing arguments used, he should let him go; or he might think it would be more expensive to have him than the rest, and therefore asks why he should desire his company above all others.

Then Absalom said, "And not (i.e., if thou doest not go), may my brother Amnon go with me?" The king would not give his consent to this; whether from suspicion cannot be determined with certainty, as he eventually yielded to Absalom's entreaties and let Amnon and all the other king's sons go. From the length of time that had elapsed since Amnon's crime was committed, without Absalom showing any wish for revenge, David might have felt quite sure that he had nothing more to fear. But this long postponement of revenge, for the purpose of carrying it out with all the more certainty, is quite in the spirit of the East.

Let Amnon - For the king designed (as the following words shew) to keep him at home with him, as being his eldest son, and heir of his kingdom: otherwise Absalom would never have made particular mention of him; which now he was forced to do. Nor did this desire of Amnon's presence want specious pretences, as that seeing the king would not, he who was next to him might, honour him with his company; and that this might be a publick token of friendship between him and his brother, notwithstanding the former occasion of difference.