Ezra 6:20

For the priests and Levites were purified, all were clean to a man, and they slew the passover for all the children of the captivity, and for their brethren the priests, and for themselves.

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.

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.