Is it right for me to eat meat?
This is actually a difficult moral question: depending on whom you ask, you will get different answers. Teachers of Judaism would say that it depends on the meat: if it’s not on their allowed list (as pork and shrimp, for a couple popular examples, are not), then it is morally wrong for me to eat meat. Muslims, Hindus, and Buddhists would also answer similarly, although some particulars may vary (e.g. for Hindus it is wrong for me to eat beef; I was never sure about rules with Buddhists, although I know they look down upon killing of any life, even nonhuman, and monks are not supposed to eat meat—but that may more have to do with prohibition of desires than moral rectitude and/or wrongness of eating meat).
If you are inclined to chalk it off frivolity of ancient religions, consider modern ones: vegetarians and vegans would consider me a barbarian for daring to eat meat. Many environmentalists, depending on their denomination, would also consider me unrighteous for eating meat (the reasons given vary widely: from the nonsensical (to me) position that animals are our companions to the more sensible proposition (at least according to their central tenets) that ranching is a large contributor to greenhouse gases).
So, who is right? Questions like this drive some to postmodern moral relativism: as nearly all of us know some who tell us we must not eat meat, and yet most of us want to continue eating meat, sometimes it seems as if moral relativism is the only way to keep us from attacking each other.
Well, guess what Paul, one of the two pillars of Christian church, says on the matter, in the letter to Corinthians: “Food will not commend us to God. We are no worse off if we do not eat, and no better off if we do,” only qualifying this freedom by saying, “But take care that this right of yours does not somehow become a stumbling block to the weak … Therefore, if food makes my brother stumble, I will never eat meat, lest I make my brother stumble.”
There is indeed nothing new under the sun: whatever points moral relativists wanted to get across has already been made by Paul, in the same letter to Corinthians regarding his (and all believers’) freedom: “‘All things are lawful for me,’ but not all things are helpful. ‘All things are lawful for me,’ but I will not be enslaved by anything.”
Then was Paul a moral relativist? Of course not; relativism relativizes itself when brought to contact with a system of morals that would disallow moral relativism. A system of morals must stand upon a foundation so that it can contend with other contradictory systems. The moral system of Paul stands on foundation established by the early church: adherence to Noahide laws, and the principle that in dealing with one another, edification comes first of all (“Let all things be done for building up.”).