2 Chronicles 12:13

(b) SUMMING UP OF THE REIGN (2 Chronicles 12:13).
(Comp. 1 Kings 14:21; 1 Kings 14:29; 1 Kings 14:31.)

The Syriac and Arabic contain this section.
(13) So king Rehoboam strengthened himself. — After the withdrawal of Shishak. In other words, he regained strength after the crushing blow inflicted by the Egyptian invasion. (Comp. the same word in 2 Chronicles 13:21; 2 Chronicles 1:1.)

And reigned — i.e., reigned on for twelve years longer; for he reigned altogether seventeen years.

Rehoboam was one and forty... Naamah an Ammonitess. — Word for word as in 1 Kings 14:21. (See the Notes there).