1 Esdras 7:9

9 The priests also and the Levites stood arrayed in their vestments, according to their kindreds, in the service of the Lord God of Israel according to the Book of Moses, and the doorkeepers at every gate.

1 Esdras 7:9 In-Context

7 And to the dedication of the temple of the Lord they offered a hundred bullocks, two hundred rams, four hundred lambs,

8 and twelve goats for the sin of all Israel, according to the number of the chief of the tribes of Israel.

9 The priests also and the Levites stood arrayed in their vestments, according to their kindreds, in the service of the Lord God of Israel according to the Book of Moses, and the doorkeepers at every gate.

10 And the children of Israel who were of the captivity held the Passover the fourteenth day of the first month, after the priests and the Levites were sanctified.

11 Those who were of the captivity were not all sanctified together, but the Levites were all sanctified together.