8 Owe no man any thing, but to love one another: for he that loveth another hath fulfilled the law.
9 For this, Thou shalt not commit adultery, Thou shalt not kill, Thou shalt not steal, Thou shalt not bear false witness, Thou shalt not covet; and if there be any other commandment, it is briefly comprehended in this saying, namely, Thou shalt love thy neighbour as thyself.
10 Love worketh no ill to his neighbour: therefore love is the fulfilling of the law.
Romans 13: 8-10 is another powerful testimony to the fact the moral laws of God are still applicable in our day. It can't be any more clear than that from the brief list of the laws in verse 9.
The point of these verses is that if a person doesn't have a full comprehension of what the law of God is and how it applies in a specific situation, they can go back to the simplicity of understanding we are to do no harm to our neighbor. That will get us out of any uncertainty we have in how to deal with different circumstances we face.
That's not to say we're not to read and dwell upon God's law, only that when something arises we're not certain about and a decision has to be made on the spot, we can count on remaining close to the will of God by filtering our actions through the impact it will have on other human beings.
Another interesting thing to comprehend here is that love, which isn't defined by emotions, but by us not doing harm to our neighbors, is the literal fulfillment of the law of God.
When people talk about love in our time, it's substituted to a meaningless emotion that could be in place even while a person is doing harm to another. It has absolutely nothing to do with how we feel about someone, and everything to do with how we treat them. Period!
That doesn't suggest we're to be an emotionless person, only that it has nothing to do with how we treat other people, or whether or not we do them harm. People that are full of emotion, in fact, such as the liberals and social justice warriors who claim to have compassion on people (as long as that compassion is expressed by using other people's money), are in many cases extremely vicious to those that don't agree with and resist their world views.
In the case of SJWs, they will destroy the reputation of a person or business, while also trying to get them removed from a job, or in the case of pressure, get them to step down in order to make it appear they had nothing to do with them losing their income.
It can also happen with businesses, as we've seen with Chick-fil-A, Duck Dynasty, and those those not wanting to make cakes for gays, among others.
As for the law in the New Testament, we can see from the list above that Paul without a doubt still considered it in force, with the emphasis on not harming those people we interact with.
With that in mind, from there we can learn about the specific laws revealed in the Holy Scriptures and learn which of them remain in force, how we can apply them in life, and whether or not penalties included in the law still remain.
I want to briefly mention how love is defined once more, because it's one of the must misused concepts in the Bible. Again, love in our generation is identified with emotions, so-called tolerance and how you feel about someone or some thing.
That type of love as it relates to God's laws, doesn't exist in the Bible. Love is not doing harm to someone else. It's as simply and easy to understand as that. That is how the law is fulfilled, and why the law of God is still part of the requirement Christians are to live by.
It has nothing to do with regeneration, being born again or saved, but everything to do with how we are to live our lives.