2 Samuel 18:20

16Joab blew the trumpet, and the people returned from pursuing after Israel; for Joab held the people back.

17They took Absalom and cast him into a great pit in the forest, and raised over him a very great heap of stones. Then all Israel fled, each to his own tent.

18Now Absalom in his lifetime had taken and reared up for himself the pillar which is in the king’s valley, for he said, “I have no son to keep my name in memory.” He called the pillar after his own name. It is called Absalom’s monument, to this day.

19Then Ahimaaz the son of Zadok said, “Let me now run and carry the king news, how the LORD has avenged him of his enemies.”

20Joab said to him, “You must not be the bearer of news today, but you must carry news another day. But today you must carry no news, because the king’s son is dead.”

21Then Joab said to the Cushite, “Go, tell the king what you have seen!” The Cushite bowed himself to Joab, and ran.

22Then Ahimaaz the son of Zadok said yet again to Joab, “But come what may, please let me also run after the Cushite.” Joab said, “Why do you want to run, my son, since you will have no reward for the news?”

23“But come what may,” he said, “I will run.” He said to him, “Run!” Then Ahimaaz ran by the way of the Plain, and outran the Cushite.

24Now David was sitting between the two gates; and the watchman went up to the roof of the gate to the wall, and lifted up his eyes and looked, and, behold, a man running alone.