Ezra 6:19-22 - The Celebration Of Passover
19 And the sons of the captivity kept the Passover upon the fourteenth [day] of the first month. 20 For the priests and the Levites had purified themselves together, all of them were pure. And they killed the Passover for all the sons of the captivity, and for their brothers the priests, and for themselves. 21 And the sons of Israel who came again out of the captivity, and all such as had separated themselves to them from the filthiness of the nations of the land, to seek LORD, the God of Israel, ate, 22 and kept the feast of unleavened bread seven days with joy. For LORD had made them joyful, and had turned the heart of the king of Assyria to them, to strengthen their hands in the work of the house of God, the God of Israel.