1 Kings 1:13
“Go and get thee in unto king David, and say unto him, Didst not thou, my lord, O king, swear unto thine handmaid, saying, Assuredly Solomon thy son shall reign after me, and he shall sit upon my throne? why then doth Adonijah reign?”
Wherefore Nathan spake unto Bath–sheba the mother of Solomon, saying, Hast thou not heard that Adonijah the son of Haggith doth reign, and David our lord knoweth it not?
Now therefore come, let me, I pray thee, give thee counsel, that thou mayest save thine own life, and the life of thy son Solomon.
Go and get thee in unto king David, and say unto him, Didst not thou, my lord, O king, swear unto thine handmaid, saying, Assuredly Solomon thy son shall reign after me, and he shall sit upon my throne? why then doth Adonijah reign?
Behold, while thou yet talkest there with the king, I also will come in after thee, and confirm thy words.
And Bath–sheba went in unto the king into the chamber: and the king was very old; and Abishag the Shunammite ministered unto the king.
Counter-Arguments
The strongest case that this verse does not belong in this theme.

Cross-References
“Even as I sware unto thee by the Lord God of Israel, saying, Assuredly Solomon thy son shall reign after me, and he shall sit upon my throne in my stead; even so will I certainly do this day.”
“Then sat Solomon upon the throne of David his father; and his kingdom was established greatly.”
“And Nathan said, My lord, O king, hast thou said, Adonijah shall reign after me, and he shall sit upon my throne?”
“The Lord hath sworn in truth unto David; he will not turn from it; Of the fruit of thy body will I set upon thy throne.”
“Then may also my covenant be broken with David my servant, that he should not have a son to reign upon his throne; and with the Levites the priests, my ministers.”