1 Kings 12:29, 32

And he set one in Bethel, and the other he put in Dan.

And Jeroboam appointed a feast on the fifteenth day of the eighth month like the feast that was in Judah, and he offered sacrifices on the altar. So he did in Bethel, sacrificing to the calves that he made. And he placed in Bethel the priests of the high places that he had made.