1 Kings 12:32
“And Jeroboam ordained a feast in the eighth month, on the fifteenth day of the month, like unto the feast that is in Judah, and he offered upon the altar. So did he in Beth–el, sacrificing unto the calves that he had made: and he placed in Beth–el the priests of the high places which he had made.”
And this thing became a sin: for the people went to worship before the one, even unto Dan.
And he made an house of high places, and made priests of the lowest of the people, which were not of the sons of Levi.
And Jeroboam ordained a feast in the eighth month, on the fifteenth day of the month, like unto the feast that is in Judah, and he offered upon the altar. So did he in Beth–el, sacrificing unto the calves that he had made: and he placed in Beth–el the priests of the high places which he had made.
So he offered upon the altar which he had made in Beth–el the fifteenth day of the eighth month, even in the month which he had devised of his own heart; and ordained a feast unto the children of Israel: and he offered upon the altar, and burnt incense.
Counter-Arguments
The strongest case that this verse does not belong in this theme.

Related Verses
“So he offered upon the altar which he had made in Beth–el the fifteenth day of the eighth month, even in the month which he had devised of his own heart; and ordained a feast unto the children of Israel: and he offered upon the altar, and burnt incense.”
“And he made an house of high places, and made priests of the lowest of the people, which were not of the sons of Levi.”
“And he set the one in Beth–el, and the other put he in Dan.”
“Whereupon the king took counsel, and made two calves of gold, and said unto them, It is too much for you to go up to Jerusalem: behold thy gods, O Israel, which brought thee up out of the land of Egypt.”
“And he reared up an altar for Baal in the house of Baal, which he had built in Samaria.”