24 While David was sitting between the inner and outer gates of the town, the watchman climbed to the roof of the gateway by the wall. As he looked, he saw a lone man running toward them. 25 He shouted the news down to David, and the king replied, "If he is alone, he has news." As the messenger came closer, 26 the watchman saw another man running toward them. He shouted down, "Here comes another one!" The king replied, "He also will have news." 27 "The first man runs like Ahimaaz son of Zadok," the watchman said. "He is a good man and comes with good news," the king replied.
Matthew Henry's Commentary on 2 Samuel 18:24-27
Commentary on 2 Samuel 18:19-33
(Read 2 Samuel 18:19-33)
By directing David to give God thanks for his victory, Ahimaaz prepared him for the news of his son's death. The more our hearts are fixed and enlarged, in thanksgiving to God for our mercies, the better disposed we shall be to bear with patience the afflictions mixed with them. Some think David's wish arose from concern about Absalom's everlasting state; but he rather seems to have spoken without due thought. He is to be blamed for showing so great fondness for a graceless son. Also for quarrelling with Divine justice. And for opposing the justice of the nation, which, as king, he had to administer, and which ought to be preferred before natural affection. The best men are not always in a good frame; we are apt to over-grieve for what we over-loved. But while we learn from this example to watch and pray against sinful indulgence, or neglect of our children, may we not, in David, perceive a shadow of the Saviour's love, who wept over, prayed for, and even suffered death for mankind, though vile rebels and enemies.