2 Samuel 18:24-27

24Now David was sitting between the two gates when the watchman went up to the roof of the gateway by the wall, looked out, and saw a man running alone. 25So he called out and told the king.

“If he is alone,” the king replied, “he bears good news.”

As the first runner drew near, 26the watchman saw another man running, and he called out to the gatekeeper, “Look! Another man is running alone!”

“This one also brings good news,” said the king.

27The watchman said, “The first man appears to me to be running like Ahimaaz son of Zadok.”

“This is a good man,” said the king. “He comes with good news.”