43 You shall not make yourselves abominable with any creeping thing that creeps, neither shall you make yourselves unclean with them, that you should be defiled thereby.
*Minor differences ignored. Grouped by changes, with first version listed as example.
Ye shall not make yourselves abominable. He does not invite them to take care of their health, nor warn them of the danger of contracting' diseases, but bids them beware of defiling themselves. And a clearer explanation is subjoined, "For I am the Lord your God: ye shall therefore sanctify yourselves; for I am holy." Lest they should imagine that the main part of religion was contained in external ceremonies, they were to consider the nature of God; for, inasmuch as He is a Spirit, He would be worshipped only spiritually. Thus holiness is only connected instrumentally with the distinction of meats; since their abstinence had no other object than that they should consecrate themselves to God. Therefore the superstition of the Jews was inexcusable, when they satisfied themselves with trifling observances; [1] as if one should learn the letters of the alphabet without applying them to their use, and reading what is written. From their example we perceive how eagerly men lay hold of everything they can to sustain them in their hypocrisy, for they not only wrested to their earthly notions the things which were profitable in the pursuit of true integrity of heart; but, not content, with this, they heaped to themselves many supererogatory rites; hence the water of expiation, or lustration always in use, even when they were unconscious of any pollution: hence their anxious labor in washing cups and platters, that it might readily appear how constantly the perversity of man abuses what God has appointed for the best of reasons.
1 - "Quand ils se sont arrestez a l'observation une et simple de choses frivoles; comme si quelqu'un apprenoit 1' a, b, c, et qu'il ne luy chalust puis apres d'accoupler les lettres pour lire;" when they stopped at the bare and simple observation of frivolous things; as if one should learn the a, b, c, and cared not afterwards to join the letters together so as to read.--Fr.
Ye shall not make yourselves abominable with any creeping thing that creepeth,.... With any creeping thing that flies in the air, excepting the four sorts of locusts, Leviticus 11:22 and with any creeping thing in the waters, Leviticus 11:10 or with anything that creeps on the land, by eating any of them; which being abominable for food, would make the eater of them so to God, he thereby breaking a command of his:
neither shall you make yourselves unclean with them; by touching and bearing them, as with dead beasts, so with dead flies and the like:
that ye should be defiled thereby; in a ceremonial sense.
*More commentary available at chapter level.