Ezra 6:20 in the King James Version
For the priests and the Levites were purified together, all of them were pure, and killed the passover for all the children of the captivity, and for their brethren the priests, and for themselves.
Context
19 The children of the captivity kept the Passover on the fourteenth day of the first month.
20 Because the priests and the Levites had purified themselves together, all of them were pure. They killed the Passover for all the children of the captivity, for their brothers the priests, and for themselves.
21 The children of Israel who had returned out of the captivity, and all who had separated themselves to them from the filthiness of the nations of the land to seek the LORD, the God of Israel, ate,