2 Samuel 14:29

To have sent him to the king; that by his mediation he might be admitted into the king's favour and presence. He would not come; partly, because perceiving David's affections to be cold to Absalom, he would not venture his own interest for him, especially in desiring that which he feared he should be denied; partly, lest by interceding further for Absalom, he should revive the remembrance of his former murder, and meet with the reproach of one murderer's interceding for another; and partly, because by converse with Absalom he observed his temper to be such, that if once he were fully restored to the king's favour, he would not only eclipse and oppose Joab's interest and power with the king, but also attempt high things, not without danger to the king and kingdom, as it happened.