1 Kings 12:30-32
Amplified Bible, Classic Edition
30 And this thing became a sin; for the people went to worship each of them even as far as Dan.
31 Jeroboam also made houses on high places and made priests of people who were not Levites.
32 And Jeroboam appointed a feast on the fifteenth day of the eighth month, like the feast kept in Judah, and he offered sacrifices upon the altar. So he did in Bethel, sacrificing to the calves he had made. And he placed in Bethel the priests of the high places he had made.Read full chapter