2 Samuel 18:19-23

19And Ahimaaz the son of Zadok said, Let me run, I pray, and carry the king the news that Jehovah has avenged him of his enemies.

20And Joab said to him, Thou shalt not be a bearer of news to-day, but thou shalt carry the news another day; but to-day thou shalt carry no news, because the king's son is dead.

21Then said Joab to the Cushite, Go, tell the king what thou hast seen. And the Cushite bowed himself to Joab, and ran.

22And Ahimaaz the son of Zadok said yet again to Joab, Come what may, let me, I pray thee, also run after the Cushite. And Joab said, Why wilt thou run, my son, seeing that there is no news suited [to thee]?

23— But, come what may, let me run. And he said to him, Run. And Ahimaaz ran by the way of the plain, and outstripped the Cushite.