Albert Barnes Commentary 1 Kings 15:32

"And there was war between Asa and Baasha king of Israel all their days." — 1 Kings 15:32 (ASV)

An exact repetition of 1 Kings 15:16. From the book before him, 1 Kings 15:31, the writer extracts a passage which happens to correspond exactly with one which he has already extracted from the “Book of the chronicles of the kings of Judah.” He does not object to repeating himself (compare 1 Kings 14:21; 1 Kings 14:31; 1 Kings 14:30; 1 Kings 15:6; 2 Kings 17:6; 2 Kings 18:11).