John Gills Exposition of the Bible Commentary - Numbers 3:18
And these are the names of the sons of Gershon, by their families ,.... Or to Gershon belonged two families, called after the names of his sons, who were now numbered, namely: Libni and Shimei ; and who are elsewhere mentioned as his sons, Exodus 6:17 ; and from hence were the families of the Libnites and Shimites, as in Numbers 3:21 . read more
Matthew Henry's Complete Commentary - Numbers 3:14-39
The Levites being granted to Aaron to minister to him, they are here delivered to him by tale, that he might know what he had, and employ them accordingly. Observe, I. By what rule they were numbered: Every male from a month old and upward, Num. 3:15. The rest of the tribes were numbered only from twenty years old and upwards, and of them those only that were able to go forth to war; but into the number of the Levites they must take in both infants, and infirm; being exempted from the war, it... read more