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.
The verse is Abijah's accusation against Jeroboam's kingdom, spoken in the setting of the conflict between Judah under Abijah and the ten tribes under Jeroboam. It rebukes Jeroboam and the northern kingdom for rejecting the ministers appointed by God for the Lord's worship. Those cast out were the priests of the Lord, the sons of Aaron, and the Levites. Israel had thus rejected the priests and Levites appointed for the Lord's worship.
In their place the northern kingdom made its own priests after the manner of other nations, according to the customs of other lands. This was a foreign pattern and a different, unauthorized practice for appointing priests. Anyone who came to consecrate himself could become a priest by bringing the stated offering. That qualification was a young bullock, literally a young bull, together with seven rams. The priests so made served gods that were no gods, beings that are not truly gods.
The division of the kingdoms in the chapter parallels the North and the South during the American Civil War. In that parallel Abijah's stand against fighting against the Lord is connected with the charge that the government had acted against God. That acting against God was by establishing slavery in the South.