Your reference to 'shrimp' is interesting. What is that?
And so it seems that Christians do not focus upon any Laws of Moses because they have the words of Jesus to follow. Is that correct?
That was simply a reply to a common comment on Old Testament dietary laws and other Jewish laws people, primarily atheists, try to cite as Christian hypocrisies or inconsistencies, entirely false arguments.
No, that wouldn't be exactly correct, not ANY LAWS, as in all laws, negated for Christians, but only codified Jewish law to an extent, relative to the Christian. Yes, the New Testament is the ruling doctrine(s) of Christianity, but this does not wholesale negate the Old Testament, as in all law of the Old Testament Law no longer relevant. Hardly. We have the Ten Commandments, which is in the category of moral law to all, for the most part, though the New Testament reveals keeping the sabbath is not necessary for the Christian, that a man may esteem all days as unto the Lord, have no holy days, in other words. So, it can be argued, of the ten, there are nine commandments that would apply to Christians.
You'll actually find God's moral laws written on the consciences of man, generally, hence secular law against such as murder or theft, in all nations, and other traits, like being a liar or an adulterer, being greedy over somebody else's goods, or disrespecting honorable parents, anyway, are not thought of as moral. On the other hand, there's universal disobedience to loving the Lord, people having all sorts of idols, false religions or things more important than God they covet, in the unbelieving or pagan world, so not to say all moral commandments are adopted universally, in legal or societal norms. But, even on this front, God's Spirit draws all men, whether they listen, or not, this another thing. This is to say the moral law to love God is there, isn't negated, for lack of man's law. But, as to the shrimp, dietary laws, this is Jewish law never given to all mankind, only Israel, and likewise ceremonial law, and you could generally say the host of laws do not the least pertain to people that are not Jews, nor could those laws even save Jews. There is a mention in the New Testament about not eating meat of a strangled animal, that is with its blood undrained, but this was the result of a compromise with Judaism that can be argued a commandment of men, but this is a more complicated discussion.
Most importantly, it's not appropriate to relegate Christianity to adhering to the bulk of the Law given only to Israel by God, never, ever given to the entire world. Even more importantly, in a very real sense, Christianity is more strict than all the laws: the Lord Jesus taught that the hateful mind is murder, the lustful mind adultery, that we are to seek cleanliness within, as a matter of fact, not be some religious person, going through the motions, some long checklist, but with black little, unregenerate hearts. The Lord Jesus roundly condemned the most religious Jews of His day, the Scribes and Pharisees, the biggest keepers of the letter of the Law as being, even, Satanic, simply huge hypocrites, empty suits. And surprise, surprise, in their minds, they were up to murdering the Lord Jesus, the only sinless Man to ever walk the planet, hence broke a major, big, ten commandment sin, for all their legal bluster, that would "strain at a gnat, and swallow a camel."
Anyway, Christianity is not simply another world religion, but a living, spiritual faith that IS Jesus Christ, based upon a repentant believer actually having the Spirit of Christ, the Holy Spirit, literally living in our hearts, to comfort and guide us into conforming to the image of Christ. In other words, all Godless evil or perversion, regardless whether there's a moral law attached, is sin. For instance, coin collecting or any art would be a sins, sports, whatever, though no explicit mention of such sin in scripture, if a person cherished collecting or such more than the pursuit of God, though this is covered under having idols in the New Testament, rooted in covetousness of other things, more than God. But the point is the Christian law is righteousness, as commanded by righteous, Holy God, and out of love of God and fellow man, and love of God means seeking to obey, seeking righteousness, because you agree He is holy and right, have repented of evil, turned from evil, generally. "The law" of the Christian is simpler, on the page,
Matthew 22
37 Jesus said unto him, Thou shalt love the Lord thy God with all thy heart, and with all thy soul, and with all thy mind.
38 This is the first and great commandment.
39 And the second is like unto it, Thou shalt love thy neighbour as thyself.
40 On these two commandments hang all the law and the prophets.
Simpler to state, but also a taller order, than all the sundry other Jewish law, combined.
Anyway, Christianity doesn't lay the plethora of Jewish law, given only to Israel, on Christians, a much smaller subset codified, like those moral laws mentioned, and other guidelines to what is reprobate, like homosexuality, evils of murder, theft, adultery reiterated, to flee fornication, moral code such as that. But you could say, generally, lust is wrong, or things born in envy, in self will, are sin, the point is it's not what you eat in Christianity, rather what you are, not what is temporary and material, but what is eternal and spiritual that you are, that is, baptized of the Spirit of Christ. It's highly inappropriate to argue most of the Law, again, given only to Israel, as a premise that it's also Christian law, the point as to what is going back and forth here in discussion. You can only argue the whole Law against Jews, but calling out the likes of shrimp or other unclean foods, etc, is not the Christian's burden, in the first place, hence not indicative of any hypocrisy, to any Gentile or even Messianic Jew, freed of the legal monkey on their back as to, primarily, ceremonial laws, diet, whatever.
The point is, it's an empty argument to say a Christian that eats shrimp may as well be a homosexual, for the simple reason the Christian was never instructed not to eat shrimp, and never any instruction to the world to be Jews. Now, one could say, if a Christian is a liar, or a thief, or an adulterer, etc, and condemns homosexuality, that is hypocrisy, but, as mentioned, these things are addressed in Christian scripture, but not shrimp, catfish or pigs and the like, rather Christianity teaching you are not what goes in your belly, but what you are in your heart, teaches material versus spiritual mandates and pursuits, being Godless or of faith, loving or unloving, of the flesh and the material world, or of the Spirit of Christ, the spirit of such doctrine:
Matthew 15
11 Not that which goeth into the mouth defileth a man; but that which cometh out of the mouth, this defileth a man.
...
17 Do not ye yet understand, that whatsoever entereth in at the mouth goeth into the belly, and is cast out into the draught?
18 But those things which proceed out of the mouth come forth from the heart; and they defile the man.
19 For out of the heart proceed evil thoughts, murders, adulteries, fornications, thefts, false witness, blasphemies:
20 These are the things which defile a man: but to eat with unwashen hands defileth not a man.
1 Corinthians 6:13 Meats for the belly, and the belly for meats: but God shall destroy both it and them. [Things of the flesh are material, temporary, pass away.] Now the body is not for fornication, but for the Lord; and the Lord for the body.
I hope this explains a few things for you, a hard subject, as best I feebly can. In any case, Christianity is not a lot of the arguments against Christianity you get from unbelievers, to be frank, many arguments based in utter ignorance, that should not be made, at all, for being invalid arguments.
The Lord Jesus, through the writings of Paul, addressed these matters in some detail, the mandates of law versus grace, and what applies and does not, what is Jewish, only. It’s all in the New Testament.
