Treasury of Scripture
Those that were numbered of them, according to the number of all the males, from a month old and upward, even those that were numbered of them were seven thousand and five hundred.
from a month old. The males of all the other tribes were numbered from twenty years old and upwards; but, had the Levites been numbered in this way, they would not have been nearly equal in number to the first-born of the twelve tribes. Add to this, that as there must have been first-born of all ages in the other tribes, it was necessary that the Levites, who were to be their substitutes, should also be of all ages; and it appears to have been partly on this ground, that the Levites were numbered from a month old and upwards.
Numbers 4:38-40 And those that were numbered of the sons of Gershon, throughout their families, and by the house of their fathers...
Strong's Concordance
Those that were numbered of them, according to the number of all the males, from a month old and upward, [even] those that were numbered of them [were] seven thousand and five hundred. Topical Bible
Counted Hundred 500 Male Males Month Numbered Numbering Ones Seven Thousand UpwardResources
Numbers Chapter 3 Verse 22
Alphabetical: a all and counted even every from in male males men month more number numbered numbering of old or The Their upward was were who
OT Law: Numbers 3:22 Those who were numbered of them according (Nu Num.)