1 Esdras 7:9

9 The priests in their robes and the Levites took their positions, family by family, for the Temple services of the Lord, the God of Israel, according to the instructions contained in the book of Moses. The Temple guards stood at each gate.

1 Esdras 7:9 In-Context

7 For the dedication they offered 100 bulls, 200 sheep, and 400 lambs as sacrifices,
8 and 12 goats as offerings for sin, one goat for the leader of each tribe of Israel.
9 The priests in their robes and the Levites took their positions, family by family, for the Temple services of the Lord, the God of Israel, according to the instructions contained in the book of Moses. The Temple guards stood at each gate.
10 The people of Israel who had returned from exile celebrated the Passover on the fourteenth day of the first month of the following year. The priests and Levites had purified themselves at the same time.
11 Not all the Jews who had returned purified themselves at that time, but the Levites did.
Scripture taken from the Good News Translation - Second Edition, Copyright 1992 by American Bible Society. Used by Permission.