2 Samuel 3:39
“And I am this day weak, though anointed king; and these men the sons of Zeruiah be too hard for me: the Lord shall reward the doer of evil according to his wickedness.”
For all the people and all Israel understood that day that it was not of the king to slay Abner the son of Ner.
And the king said unto his servants, Know ye not that there is a prince and a great man fallen this day in Israel?
And I am this day weak, though anointed king; and these men the sons of Zeruiah be too hard for me: the Lord shall reward the doer of evil according to his wickedness.
Counter-Arguments
The strongest case that this verse does not belong in this theme.

Related Verses
“And I will come upon him while he is weary and weak handed, and will make him afraid: and all the people that are with him shall flee; and I will smite the king only:”
“So do God to Abner, and more also, except, as the Lord hath sworn to David, even so I do to him;”
“And David said, What have I to do with you, ye sons of Zeruiah, that ye should this day be adversaries unto me? shall there any man be put to death this day in Israel? for do not I know that I am this day king over Israel?”
“And the Lord shall return his blood upon his own head, who fell upon two men more righteous and better than he, and slew them with the sword, my father David not knowing thereof, to wit, Abner the son of Ner, captain of the host of Israel, and Amasa the son of Jether, captain of the host of Judah.”
“Let it rest on the head of Joab, and on all his father’s house; and let there not fail from the house of Joab one that hath an issue, or that is a leper, or that leaneth on a staff, or that falleth on the sword, or that lacketh bread.”