Of this no reason can be given, but the will of the law — giver and his merciful condescension to men's necessities, water being scarce in those countries; and for the same reason God would have the ceremonial law of sacrifices, give place to the law of mercy.
Related Commentaries of Leviticus 11:36
Leviticus 11:36
36 Nevertheless a fountain or pit, wherein there is plenty of water, shall be clean: but that which toucheth their carcase shall be unclean.