Leviticus 11:31
11:31 These are the ones that are unclean to you among all the swarming things. Anyone who touches them when they die will be unclean until evening.
Leviticus 11:43
11:43 Do not make yourselves detestable by any of the swarming things. You must not defile yourselves by them and become unclean by them,
Leviticus 18:4
18:4 You must observe my regulations and you must be sure to walk in my statutes. I am the Lord your God.