2 Samuel 18:23

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.

25The watchman shouted and told the king. The king said, “If he is alone, there is news in his mouth.” He came closer and closer.

26The watchman saw another man running; and the watchman called to the gatekeeper and said, “Behold, a man running alone!” The king said, “He also brings news.”

27The watchman said, “I think the running of the first one is like the running of Ahimaaz the son of Zadok.” The king said, “He is a good man, and comes with good news.”