From the outside a Pig might appear to be kosher because it has split hooves but because internally it only has one stomach the pig and can not chew it’s cud it remains non kosher. What is amazing is that the Bible/Torah mentions a total of only four animals that have one but not two of the traits that are needed to be Kosher and science has never found one other animal that they can add to this list. For those that believe in science another proof that the Bible/Torah is true. It is said that when the Messiah appears pigs will be able to chew their cud and become Kosher. That means that they must change internally to be Kosher. I believe for us it means that even if we appear holy on the outside it is more important for us to be holy in our heart and soul.