Ezra 6:21-22

21And the sons of Israel who returned from exile and 1all those who had separated themselves from 2the impurity of the nations of the land to join them, to seek the Lord God of Israel, ate the Passover.

22And 3they held the Feast of Unleavened Bread for seven days with joy, because the Lord had made them happy, and 4had turned the heart of 5the king of Assyria toward them to 6encourage them in the work of the house of God, the God of Israel.