Numbers 4:46-49

46All those that were numbered of the Levites, whom Moses and Aaron and the princes of Israel numbered, after their families and according to their fathers' houses, 47from thirty years old and upward even to fifty years old, every one that came to serve [in] the work of the service, and [in] the work of carrying, in the tent of meeting, 48even those that were numbered of them, were eight thousand five hundred and eighty. 49According to the commandment of Jehovah they were numbered by Moses, every one for his service, and for his burden, and numbered by him, as Jehovah had commanded Moses.