So I am very nonreligious but I at least know that the bible says you are not allowed to eat pork. People just do anyways. (Which is awesome though, the bible says a lot of fucked up stuff and nobody should follow it)
The bible says a lot of things in the Old Testament that were put there so God could show his people how incapable of obeying him they are on his own. Then he sent Jesus so that his people have perfect obedience in him instead of in themselves. He was the fulfillment of the law of the Old Testament, and as such, many of the old laws were fulfilled and no longer needed to be practiced. One such law was eating pig.
Eh, as I understand it, it wasn't so much to prove how incapable they were of obeying him, it was more a "You asked Moses for some rules but couldn't handle just a few simple ones, so I'm going to give you a ton of rules to organize every little everyday thing." And it did build a new society for them. Better a ton of rules to prop up a people and then be taken away once they'd grown into a society than no rules and anarchy dissolving that people before they could become anything.
But yeah, the basic point is, a lot of that stuff (not the entire Old Testament, but at least the Law of Moses stuff) was fulfilled in Christ and was done away with. It's kinda funny that pork prompted this, because when showing how the gospel should be taught to Gentiles instead of kept within the Jews as it had always been, the usual symbolism was how certain meats, like pork, had once been called unclean but were now okay.
But yeah, the basic point is, a lot of that stuff (not the entire Old Testament, but at least the Law of Moses stuff) was fulfilled in Christ and was done away with. It's kinda funny that pork prompted this, because when showing how the gospel should be taught to Gentiles instead of kept within the Jews as it had always been, the usual symbolism was how certain meats, like pork, had once been called unclean but were now okay.