2 Samuel 15:27
“The king said also unto Zadok the priest, Art not thou a seer? return into the city in peace, and your two sons with you, Ahimaaz thy son, and Jonathan the son of Abiathar.”
And the king said unto Zadok, Carry back the ark of God into the city: if I shall find favour in the eyes of the Lord, he will bring me again, and shew me both it, and his habitation:
But if he thus say, I have no delight in thee; behold, here am I, let him do to me as seemeth good unto him.
The king said also unto Zadok the priest, Art not thou a seer? return into the city in peace, and your two sons with you, Ahimaaz thy son, and Jonathan the son of Abiathar.
See, I will tarry in the plain of the wilderness, until there come word from you to certify me.
Zadok therefore and Abiathar carried the ark of God again to Jerusalem: and they tarried there.
Counter-Arguments
The strongest case that this verse does not belong in this theme.

Cross-References
“And lo Zadok also, and all the Levites were with him, bearing the ark of the covenant of God: and they set down the ark of God; and Abiathar went up, until all the people had done passing out of the city.”
“But if thou return to the city, and say unto Absalom, I will be thy servant, O king; as I have been thy father’s servant hitherto, so will I now also be thy servant: then mayest thou for me defeat the counsel of Ahithophel.”
“Behold, they have there with them their two sons, Ahimaaz Zadok’s son, and Jonathan Abiathar’s son; and by them ye shall send unto me every thing that ye can hear.”
“For when David was up in the morning, the word of the Lord came unto the prophet Gad, David’s seer, saying,”
“(Beforetime in Israel, when a man went to enquire of God, thus he spake, Come, and let us go to the seer: for he that is now called a Prophet was beforetime called a Seer.)”