TSK · Leviticus 23:33

Jeroboam ordained a feast in the eighth month, on the fifteenth day of the month, like the feast that is in Judah, and he went up to the altar; so did he in Bethel, sacrificing to the calves that he had made: and he placed in Bethel the priests of the high places that he had made.

In the seventh [month], in the fifteenth day of the month, in the feast, shall he do the like the seven days; according to the sin offering, according to the burnt offering, and according to the meal offering, and according to the oil.