Which Moses and Aaron numbered - The word ואהרן veaharon, "and Aaron." has a point over each of its letters, probably designed as a mark of spuriousness. The word is wanting in the Samaritan, Syriac, and Coptic; it is wanting also in eight of Dr. Kennicott's MSS., and in four of De Rossi's. Moses alone, as Houbigant observes, is commanded to take the number of the Levites; see Numbers 3:5, Numbers 3:11, Numbers 3:40, Numbers 3:44, and Numbers 3:51.

All the males - were twenty and two thousand - This total does not agree with the particulars; for the Gershonites were 7,500, the Kohathites 8,600, the Merarites 6,200, total 22,300. Several methods of solving this difficulty have been proposed by learned men; Dr. Kennicott's is the most simple. Formerly the numbers in the Hebrew Bible were expressed by letters, and not by words at full length; and if two nearly similar letters were mistaken for each other, many errors in the numbers must be the consequence. Now it is probable that an error has crept into the number of the Gershonites, Numbers 3:22, where, instead of 7,500, we should read 7,200, as ך caph, 500, might have been easily mistaken for ר resh, 200, especially if the down stroke of the caph had been a little shorter than ordinary, which is often the case in MSS. The extra 300 being taken off, the total is just 22,000, as mentioned in the 39th verse.

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The Fifth Commandment
Honour thy father and thy mother: that thy days may be long upon the land which the Lord thy God giveth thee.' Exod 20: 12. Having done with the first table, I am next to speak of the duties of the second table. The commandments may be likened to Jacob's ladder: the first table respects God, and is the top of the ladder that reaches to heaven; the second respects superiors and inferiors, and is the foot of the ladder that rests on the earth. By the first table, we walk religiously towards God; by …
Thomas Watson—The Ten Commandments