Ezekiel 45:16-18

New Revised Standard Version Catholic Edition

¹⁶ All the people of the land shall join with the prince in Israel in making this offering. ¹⁷ But this shall be the obligation of the prince regarding the burnt offerings, grain offerings, and drink offerings, at the festivals, the new moons, and the sabbaths, all the appointed festivals of the house of Israel: he shall provide the sin offerings, grain offerings, the burnt offerings, and the offerings of well-being, to make atonement for the house of Israel.

Festivals

¹⁸ Thus says the Lord God: In the first month, on the first day of the month, you shall take a young bull without blemish, and purify the sanctuary.