Ahimaaz was the father of Azariah, and Azariah was the father of Johanan.
The king said to Zadok the priest, “Are you a seer?
Then Ahimaaz the son of Zadok said, “Let me run and give the king the good news that the Lord has vindicated him before his enemies.”
Now Jonathan and Ahimaaz were staying in En Rogel. A female servant would go and inform them, and they would then go and inform King David. It was not advisable for them to be seen going into the city.