2 Samuel 18:22–23

Then Ahimaaz the son of Zadok said again to Joab, “Come what may, let me also run after the Cushite.” And Joab said, “Why will you run, my son, seeing that you will have no reward for the news?” “Come what may,” he said, “I will run.” So he said to him, “Run.” Then Ahimaaz ran by the way of the plain, and outran the Cushite.

However, Ahimaaz son of Zadok persisted and said to Joab, “No matter what, please let me also run behind the Cushite!”

Joab replied, “My son, why do you want to run since you won’t get a reward?”

“No matter what, I want to run!”

“Then run!” Joab said to him. So Ahimaaz ran by way of the plain and outran the Cushite.

But Ahimaaz continued to plead with Joab, “Whatever happens, please let me go, too.”

“Why should you go, my son?” Joab replied. “There will be no reward for your news.”

“Yes, but let me go anyway,” he begged.

Joab finally said, “All right, go ahead.” So Ahimaaz took the less demanding route by way of the plain and ran to Mahanaim ahead of the Ethiopian.

Then Ahimaaz the son of Zadok again said to Joab, “Come what may, please let me also run after the Cushite.” Joab asked, “Why are you wanting to run, my son, when for you there is no messenger’s reward?” “Come what may, I want to run.” He said to him, “Run,” so Ahimaaz ran on the road on the plain, and he passed the Cushite.

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? But howsoever, said he, let me run. And he said unto him, Run. Then Ahimaaz ran by the way of the plain, and overran Cushi.