Nevertheless, a spring or cistern containing water will remain clean, but one who touches a carcass in it will be unclean.
Here is the law, 1. Concerning flying insects, as flies, wasps, bees, etc.; these they might not eat (Lev 11:20), nor indeed are they fit to be eaten; but there were several sorts of locusts which in those countries were very good meat, and much used: John Baptist lived upon them in the desert, and they are here allowed them, Lev 11:21, Lev 11:22. 2.
Commenting on Leviticus 11:20-42
Nevertheless, a fountain or pit, wherein there is plenty of water,.... Or, "a fountain or pit, a collection of waters", the copulative being wanting, as some observe, Aben Ezra takes notice of; or it may be by way of apposition, and so may explain what fountain or pit is meant, even such an one where there is a large continence of water, into which, if...
Nevertheless a fountain or pit, [wherein there is] plenty of water, shall be clean: but that which toucheth their carcase shall be unclean. (k) So much of the water as touched it.