Leviticus 11:24, 43-44

“‘By these you defile yourselves; anyone who touches their carcass will be unclean until the evening

Do not make yourselves detestable by any of the swarming things. You must not defile yourselves by them and become unclean by them, for I am the LORD your God and you are to sanctify yourselves and be holy because I am holy. You must not defile yourselves by any of the swarming things that creep on the ground