2 Samuel 18:24-25
24-25David was sitting between the two gates. The sentry had gone up to the top of the gate on the wall and looked around. He saw a solitary runner. The sentry called down and told the king. The king said, "If he's alone, it must be good news!"
25-26As the runner came closer, the sentry saw another runner and called down to the gate, "Another runner all by himself."
And the king said, "This also must be good news."