Albert Barnes Commentary Leviticus 11:2

"Speak unto the children of Israel, saying, These are the living things which ye may eat among all the beasts that are on the earth." — Leviticus 11:2 (ASV)

Rather, These are the animals which ye may eat out of all the beasts; that is, out of the larger creatures, the quadrupeds, as distinguished from birds and reptiles. See (Genesis 1:24). Of quadrupeds, those only might be eaten which completely divided the hoof and chew the cud (Leviticus 11:3–8).