2 Samuel 18:22

Ahimaaz son of Zadok, however, persisted and said to Joab, “No matter what, please let me also run behind the Cushite!” “My son,” Joab replied, “why do you want to run, since you will not receive a reward?”

Then said Ahimaaz the son of Zadok yet again to Joab, But howsoever, let me, I pray thee, also run after Cushi. And Joab said, Wherefore wilt thou run, my son, seeing that thou hast no tidings ready?