Numbers 26:61-63 Living Bible (TLB)
61 But Nadab and Abihu died when they offered unauthorized incense before the Lord.
62 The total number of Levites in the census was 23,000, counting all the males a month old and upward. But the Levites were not included in the total census figure of the people of Israel, for the Levites were given no land when it was divided among the tribes.
63 So these are the census figures as prepared by Moses and Eleazar the priest, in the plains of Moab beside the Jordan River, across from Jericho.