Leviticus 11:42

11:42 You must not eat anything that crawls on its belly or anything that walks on all fours or on any number of legs of all the swarming things that swarm on the land, because they are detestable.

Leviticus 25:15-16

25:15 You may buy it from your fellow citizen according to the number of years since the last jubilee; he may sell it to you according to the years of produce that are left. 25:16 The more years there are, the more you may make its purchase price, and the fewer years there are, the less you must make its purchase price, because he is only selling to you a number of years of produce.