Numbers 8:9 Book: Numbers 8 And thou shalt present the Levites before the tent of meeting: and thou shalt assemble the whole congregation of the children of Israel:
Nehemiah 13:10 Book: Nehemiah 13 And I perceived that the portions of the Levites had not been given them; so that the Levites and the singers, that did the work, were fled every one to his field.