The king also told Zadok the priest, “You understand the situation, don't you? Go back to the city safely with your son Ahimaaz, and also Jonathan, son of Abiathar. You and Abiathar take both of your sons back with you.
Jonathan and Ahimaaz were staying at En-rogel because they couldn't be seen entering the city. A servant girl would come and tell them what was happening. Then they would go and let King David know.
“You're not the man to take the good news today,” Joab replied. “You can do it some other time, but don't do it today, because the king's son is dead.”
“Doesn't matter, I want to run anyway,” he said. “Fine, start running!” Joab told him. Ahimaaz took the route over flatter ground and overtook the Ethiopian.
A runner hands his message over to another to carry; one messenger follows another messenger, all of them alerting the king of Babylon to the news that his city has been completely conquered,
My dear friends, don't seek revenge, but leave it to God to execute judgment—as Scripture points out, “‘It's for me to dispense justice, I will repay,’ says the Lord.”