Charles Ellicott Commentary 1 Kings 13:34

"And this thing became sin unto the house of Jeroboam, even to cut it off, and to destroy it from off the face of the earth." — 1 Kings 13:34 (ASV)

And this thing. —The comment of the author of the book, evidently based on the prophetic denunciation of Ahijah in 1 Kings 14:9–11, and its subsequent fulfilment. (See 1 Kings 15:25–30.)