62 The men from the Levite clans who were one month old or older numbered 23,000. But the Levites were not included in the registration of the rest of the people of Israel because they were not given an allotment of land when it was divided among the Israelites.
Matthew Henry's Commentary on Numbers 26:62
Commentary on Numbers 26:57-62
(Read Numbers 26:57-62)
Levi was God's tribe; therefore it was not numbered with the rest, but alone. It came not under the sentence, that none of them should enter Canaan excepting Caleb and Joshua.