Ye shall not touch, to wit, in order to eating, as may be gathered by comparing this with Genesis 3:3 Colossians 2:21. For since the fat and the skins of some of the forbidden creatures were useful for medicinal and other good uses, and were used by good men; see Matthew 3:4; it is not probable that God would have them cast away. Thus God forbad the making of images, Exo 20, not absolutely and universally, but in order to the worshipping of them, as Christian interpreters agree. Or, they were here forbidden to touch them, to wit, unnecessarily; and if he that touched them for some necessary use were polluted by it, it was but a slight and transient pollution, ending at evening, as appears from Leviticus 11:24,25, &c.
Related Commentaries of Leviticus 11:8
Leviticus 11:8
8 Of their flesh shall ye not eat, and their carcase shall ye not touch; they are unclean to you.