Ezra 6:16-22

And the children of Israel, the priests and the Levites, and the rest of the children of the captivity, kept the dedication of this house of God with joy. And they offered at the dedication of this house of God a hundred bullocks, two hundred rams, four hundred lambs; and for a sin-offering for all Israel, twelve he-goats, according to the number of the tribes of Israel. And they set the priests in their divisions, and the Levites in their courses, for the service of God, which is at Jerusalem; as it is written in the book of Moses. And the children of the captivity kept the passover upon the fourteenth day of the first month. For the priests and the Levites had purified themselves together; all of them were pure: and they killed the passover for all the children of the captivity, and for their brethren the priests, and for themselves. And the children of Israel that were come again out of the captivity, and all such as had separated themselves unto them from the filthiness of the nations of the land, to seek Jehovah, the God of Israel, did eat, and kept the feast of unleavened bread seven days with joy: for Jehovah had made them joyful, and had turned the heart of the king of Assyria unto them, to strengthen their hands in the work of the house of God, the God of Israel.