Ezra 6
20 Ref For the priests and the Levites had made themselves clean together; they were all clean: and they put the Passover lamb to death for all those who had come back, and for their brothers the priests and for themselves.
21 Ref And the children of Israel, who had come back, and all those who were joined to them, after separating themselves from the evil ways of the people of the land to become the servants of the Lord, the God of Israel, took food together,