2 Samuel 18:24-27

24While David was sitting between the inner and outer gates, the watchman went up to the roof of the gateway by the wall. As he looked out, he saw a man running alone.

25The watchman called out to the king and reported it. The king said, “If he is alone, he must have good news.” And the runner came closer and closer.

26Then the watchman saw another runner, and he called down to the gatekeeper, “Look, another man running alone!” The king said, “He must be bringing good news, too.”

27The watchman said, “It seems to me that the first one runs like Ahimaaz son of Zadok.” “He’s a good man,” the king said. “He comes with good news.”