2 Samuel 14:29
Therefore Absalom sent for Joab, to have sent him to the king; but he would not come to him: and when he sent again the second time, he would not come. Therefore Absalom sent for Joab, to have sent him to the king; but he would not come to him: and when he sent again the second time, he would not come.
Absalom summoned Joab to act as his intermediary with the king, sending for him twice for that purpose, and on both occasions Joab declined to come. This refusal came after Joab had previously intervened on Absalom's behalf to bring about his reconciliation with David. The help and trust Joab thus extended was afterward betrayed when Absalom stirred up rebellion against the king.