Midrash sur Les Nombres 3:22

Scripture states elsewhere: Moreover, they reckoned not with the men, into whose hand they delivered the money to give to them that did the work; for they dealt faithfully (II Kings 12:16). This verse refers to the generation of Joash. Our sages teach us: One should not enter the Sanctuary with an offering while wearing a bordered cloak, a money belt, or felt shoes, for the people may say of him: “If he becomes wealthy, he acquired his wealth from the Temple treasury.” Just as a man must be morally pure in the sight of heaven, so must he be above suspicion among his fellowmen, as it is said: Then ye shall be clean before the Lord, and before Israel (Num. 3:22). Yet Moses alone was in charge of the Tabernacle treasury. At the time that the Holy One, blessed be He, told Moses: Let them make Me a Sanctuary, that I may dwell among them (Exod. 25:8), it is written: And Moses assembled all the congregation and said: “Take ye from among you an offering unto the Lord” (Exod. 35:1, 5).

The Rabbis interpret the verse regarding those who departed from Egypt. “There are sixty queens,” these are the six hundred thousand [men] from the age of twenty and above who departed [from Egypt]. “And eighty concubines,” these are the eight hundred thousand Israelites from the age of twenty and below who departed. “And young women without number,” there is no limit and no tally of the proselytes.
Rabbi Berekhya said in the name of Rabbi Levi: The nations of the world have enumeration but do not have a tally.³⁰At times the Torah lists their descendants, but it does not give a total number. They have enumeration:“the children of Yefet, Gomer and Magog” (Genesis 10:2). But Israel has enumeration and a tally, as it is written: “Their count according to the number of every male…[their count was seven thousand five hundred]” (Numbers 3:22); “their count,” this is the enumeration, “according to the number,” this is the tally.
Likewise, “Yoav gave the sum of the number of the census to the king…” (II Samuel 24:9), “sum,” this is the enumeration, “census,” this is the tally. If you say that we are testifying about ourselves, did not the wicked Bilam testify in our regard, as it is written: “Who has counted the dust of Jacob,” this is the enumeration, “or tallied one quarter of Israel” (Numbers 23:10), this is the tally.