2 Samuel 18:22 in the King James Version
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?
Context
21 Then Joab said to the Cushite, “Go, tell the king what you have seen!” The Cushite bowed himself to Joab, and ran.
22 Then Ahimaaz the son of Zadok said yet again to Joab, “But come what may, please let me also run after the Cushite.” Joab said, “Why do you want to run, my son, since you will have no reward for the news?”
23 “But come what may,” he said, “I will run.” He said to him, “Run!” Then Ahimaaz ran by the way of the Plain, and outran the Cushite.