‏ 1 Kings 16:23

23In the thirty-first year of Asa, the king of Judah, Omri reigned over Israel for twelve years; he reigned for six years at Tirzah.
16:23 In the thirty-first year, etc: Amri began to reign in the twenty-seventh year of Asa; but had not quiet possession of the kingdom till the death of his competitor Thebni, which was in the thirty-first year of Asa’s reign.(Challoner)
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