Numbers 3:41-51

41 and thou hast taken the Levites for Me (I [am] Jehovah), instead of every first-born among the sons of Israel, and the cattle of the Levites instead of every firstling among the cattle of the sons of Israel.'
42 And Moses numbereth, as Jehovah hath commanded him, all the first-born among the sons of Israel.
43 And all the first-born -- male -- by the number of names, from a son of a month and upward, of their numbered ones, are two and twenty thousand two hundred and seventy and three.
44 And Jehovah speaketh unto Moses, saying,
45 `Take the Levites instead of every first-born among the sons of Israel, and the cattle of the Levites instead of their cattle; and the Levites have been Mine; I [am] Jehovah.
46 `And [from] those ransomed of the two hundred and seventy and three (who are more than the Levites) of the first-born of the sons of Israel,
47 thou hast even taken five shekels a-piece by the poll -- by the shekel of the sanctuary thou takest; twenty gerahs the shekel [is];
48 and thou hast given the money to Aaron, and to his sons, whereby those over and above are ransomed.'
49 And Moses taketh the ransom money from those over and above those ransomed by the Levites;
50 from the first-born of the sons of Israel he hath taken the money, a thousand and three hundred and sixty and five -- by the shekel of the sanctuary;
51 and Moses giveth the money of those ransomed to Aaron, and to his sons, according to the command of Jehovah, as Jehovah hath commanded Moses.

Numbers 3:41-51 Meaning and Commentary

INTRODUCTION TO NUMBERS 3

In this chapter an account is given of the genealogy of the priests and Levites, and of the gift of the Levites to the priests, of the numbering of them, and the service they were to perform; and first of the priests, the sons of Aaron, Nu 3:1-4; and then of the Levites, as given unto them, to wait upon them, and assist them, Nu 3:5-10; and these were taken instead of the firstborn, Nu 3:11-13; and ordered to be numbered, which was done accordingly by their families, Nu 3:14-20; and the sum of each is given, and the particular work assigned to them; of the Gershonites, Nu 3:21-26; of the Kohathites, Nu 3:27-32; of the Merarites, Nu 3:33-38; the sum total of them is given, Nu 3:39; then the firstborn of the children of Israel, from a month old are ordered to be numbered, and were, Nu 3:40-43; and these appearing to be more in number than the Levites, by two hundred seventy three a direction is given that the two hundred seventy three should be redeemed at the rate of five, shekels apiece, and the money paid to Aaron and his sons, Nu 3:44-48; which was accordingly done, Nu 3:49-51.

Young's Literal Translation is in the public domain.