1 Kings 12:31-33

31He also made atemples on high places and bappointed priests from among all the people, who were not of the Levites. 32And Jeroboam appointed a feast on the fifteenth day of the eighth month like cthe 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 dthe priests of the high places that he had made. 33He went up to the altar that he had made in Bethel on the fifteenth day in the eighth month, in the month that he had devised from his own heart. And he instituted a feast for the people of Israel and went up to the altar eto make offerings.

1 Kings 13:33

33After this thing Jeroboam did not turn from his evil way, but made priests for the high places again from among all the people. Any who would, he ordained to be priests of the high places.
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