1 Kings 12:32

And Jeroboam ordained a feast in the eighth month, instead of the seventh selected by the Lord, on the fifteenth day of the month, like unto the feast that is in Judah, the Feast of Tabernacles, the harvest festival proper; and he offered upon the altar, he ascended the incline to the large altar while the priests offered the sacrifice. So did he in Bethel, sacrificing unto the calves that he had made; and he placed in Bethel the priests of the high places which he had made.