Leviticus 11:1, 4, 41-44

Then the LORD said to Moses and Aaron

You may not, however, eat the following animals that have split hooves or that chew the cud, but not both. The camel chews the cud but does not have split hooves, so it is ceremonially unclean for you.

“All small animals that scurry along the ground are detestable, and you must never eat them. This includes all animals that slither along on their bellies, as well as those with four legs and those with many feet. All such animals that scurry along the ground are detestable, and you must never eat them. Do not defile yourselves by touching them. You must not make yourselves ceremonially unclean because of them. For I am the LORD your God. You must consecrate yourselves and be holy, because I am holy. So do not defile yourselves with any of these small animals that scurry along the ground.