1 Kings 15:1
“Now in the eighteenth year of king Jeroboam the son of Nebat reigned Abijam over Judah.”
Now in the eighteenth year of king Jeroboam the son of Nebat reigned Abijam over Judah.
Three years reigned he in Jerusalem. And his mother’s name was Maachah, the daughter of Abishalom.
And he walked in all the sins of his father, which he had done before him: and his heart was not perfect with the Lord his God, as the heart of David his father.
Counter-Arguments
The strongest case that this verse does not belong in this theme.

Cross-References
“And Rehoboam slept with his fathers, and was buried with his fathers in the city of David. And his mother’s name was Naamah an Ammonitess. And Abijam his son reigned in his stead.”
“Now in the eighteenth year of king Jeroboam began Abijah to reign over Judah.”
“And after her he took Maachah the daughter of Absalom; which bare him Abijah, and Attai, and Ziza, and Shelomith.”
“Now in the eighteenth year of king Jeroboam began Abijah to reign over Judah.”