Leviticus 11:24

Carcass Uncleanness

11:24 “‘By these you defile yourselves; anyone who touches their carcass will be unclean until the evening,

Leviticus 11:43-44

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, 11:44 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,