21 And Joab saith to Cushi, 'Go, declare to the king that which thou hast seen;' and Cushi boweth himself to Joab, and runneth. 22 And Ahimaaz son of Zadok addeth again, and saith unto Joab, 'And whatever it be, let me run, I pray thee, I also, after the Cushite.' And Joab saith, 'Why 'is' this—thou art running, my son, and for thee there are no tidings found?'— 23 'And, whatever it be, 'said he,' let me run.' And he saith to him, 'Run;' and Ahimaaz runneth the way of the circuit, and passeth by the Cushite. 24 And David is sitting between the two gates, and the watchman goeth unto the roof of the gate, unto the wall, and lifteth up his eyes, and looketh, and lo, a man running by himself. 25 And the watchman calleth, and declareth to the king, and the king saith, 'If by himself, tidings 'are' in his mouth;' and he cometh, coming on and drawing near.
Matthew Henry's Commentary on 2 Samuel 18:21-25
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.