2 Chronicles 13:9
“Have ye not cast out the priests of the Lord, the sons of Aaron, and the Levites, and have made you priests after the manner of the nations of other lands? so that whosoever cometh to consecrate himself with a young bullock and seven rams, the same may be a priest of them that are no gods.”
And there are gathered unto him vain men, the children of Belial, and have strengthened themselves against Rehoboam the son of Solomon, when Rehoboam was young and tenderhearted, and could not withstand them.
And now ye think to withstand the kingdom of the Lord in the hand of the sons of David; and ye be a great multitude, and there are with you golden calves, which Jeroboam made you for gods.
Have ye not cast out the priests of the Lord, the sons of Aaron, and the Levites, and have made you priests after the manner of the nations of other lands? so that whosoever cometh to consecrate himself with a young bullock and seven rams, the same may be a priest of them that are no gods.
But as for us, the Lord is our God, and we have not forsaken him; and the priests, which minister unto the Lord, are the sons of Aaron, and the Levites wait upon their business:
And they burn unto the Lord every morning and every evening burnt sacrifices and sweet incense: the shewbread also set they in order upon the pure table; and the candlestick of gold with the lamps thereof, to burn every evening: for we keep the charge of the Lord our God; but ye have forsaken him.
Counter-Arguments
The strongest case that this verse does not belong in this theme.

Cross-References
“Howbeit then, when ye knew not God, ye did service unto them which by nature are no gods.”
“After this thing Jeroboam returned not from his evil way, but made again of the lowest of the people priests of the high places: whosoever would, he consecrated him, and he became one of the priests of the high places.”
“How shall I pardon thee for this? thy children have forsaken me, and sworn by them that are no gods: when I had fed them to the full, they then committed adultery, and assembled themselves by troops in the harlots’ houses.”
“And thus shalt thou do unto Aaron, and to his sons, according to all things which I have commanded thee: seven days shalt thou consecrate them.”
“Howbeit then, when ye knew not God, ye did service unto them which by nature are no gods.”