Leviticus 23:33

then make an offering by fire to Yahweh, a burnt offering or a sacrifice to fulfill a special vow, or as a freewill offering or in your appointed times, to make a soothing aroma to Yahweh, from the herd or from the flock.

‘Then on the fifteenth day of the seventh month you shall have a holy convocation; you shall do no laborious work, and you shall celebrate a feast to Yahweh for seven days.

And Jeroboam made a feast in the eighth month on the fifteenth day of the month, like the feast which is in Judah, and he went up to the altar; thus he did in Bethel, to sacrifice to the calves which he had made. And he had the priests of the high places, which he had made, stand in Bethel.

“And it shall be the prince’s part to provide the burnt offerings, the grain offerings, and the drink offerings, at the feasts, on the new moons, and on the sabbaths, at all the appointed times of the house of Israel; he shall provide the sin offering, the grain offering, the burnt offering, and the peace offerings, to make atonement for the house of Israel.”

“In the seventh month, on the fifteenth day of the month, at the feast, he shall provide like this, seven days for the sin offering, the burnt offering, the grain offering, and the oil.”

The Feast of Booths