The prince will be required to provide offerings that are given at the religious festivals, the new moon celebrations, the Sabbath days, and all other similar occasions. He will provide the sin offerings, burnt offerings, grain offerings, liquid offerings, and peace offerings to purify the people of Israel, making them right with the Lord.
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The offerings were to be made by the people through the prince for the service of the sanctuary. In the Mosaic Law, the offerings for the sacrifice…

The prince’s part.—The prince, receiving these contributions from the people, was bound to provide the offerings on the various st…

And it shall be the prince's part to give burnt offerings
Or, "upon the prince shall be the burnt offerings" F5; it…

In the period here foretold, the worship and the ministers of God will be provided for; the princes will rule with justice, as holding their power …
Albert Barnes
AlbertBarnes