Abiathar: Helps David by Sending his Son from Jerusalem to David with Secret Information Concerning the Counsel of Ahithophel
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2 Samuel 15:35, 36
Will not Zadok and Abiathar the priests be there with you? Report to them everything you hear from the king’s palace. / Indeed, their two sons, Ahimaaz son of Zadok and Jonathan son of Abiathar, are there with them. Send them to me with everything you hear.”
2 Samuel 17:15–22
So Hushai told Zadok and Abiathar, the priests, “This is what Ahithophel has advised Absalom and the elders of Israel, and this is what I have advised. / Now send quickly and tell David, ‘Do not spend the night at the fords of the wilderness, but be sure to cross over. Otherwise the king and all the people with him will be swallowed up.’” / Now Jonathan and Ahimaaz were staying at En-rogel, where a servant girl would come and pass along information to them. They in turn would go and inform King David, for they dared not be seen entering the city.
1 Kings 2:26
Then the king said to Abiathar the priest, “Go back to your fields in Anathoth. Even though you deserve to die, I will not put you to death at this time, since you carried the ark of the Lord GOD before my father David, and you suffered through all that my father suffered.”