2 Chronicles 13:1
“Now in the eighteenth year of king Jeroboam began Abijah to reign over Judah.”
Now in the eighteenth year of king Jeroboam began Abijah to reign over Judah.
He reigned three years in Jerusalem. His mother’s name also was Michaiah the daughter of Uriel of Gibeah. And there was war between Abijah and Jeroboam.
And Abijah set the battle in array with an army of valiant men of war, even four hundred thousand chosen men: Jeroboam also set the battle in array against him with eight hundred thousand chosen men, being mighty men of valour.
Counter-Arguments
The strongest case that this verse does not belong in this theme.

Related Verses
“Now in the eighteenth year of king Jeroboam the son of Nebat reigned Abijam over Judah.”
“He reigned three years in Jerusalem. His mother’s name also was Michaiah the daughter of Uriel of Gibeah. And there was war between Abijah and Jeroboam.”
“Now Jehoram the son of Ahab began to reign over Israel in Samaria the eighteenth year of Jehoshaphat king of Judah, and reigned twelve years.”
“And in the twentieth year of Jeroboam king of Israel reigned Asa over Judah.”
“At that time Abijah the son of Jeroboam fell sick.”