There is much to say about Christians and the Law of God, but the answer to the question is the same for everyone, not just Christians, namely, obey it.
It’s quite simple actually. God is just and loving, and therefore the Law that flows from Him is just and loving (Mark 12:28-34). Man is depraved and selfish, and therefore the law that flows from man is depraved and selfish. I mean, just look around. For example, in God’s Law a man actually owns his property. In man’s law we don’t own anything, we simply pay rent (property taxes) until we die.
Some think that the Law of God is no longer binding because of Jesus. However, this sort of thinking, the kind that divides the Bible, is simply false. Paul repeatedly tells us that faith and obedience to Law are inseparable. Like here in Romans 3:31. Then there is this passage in 1 Timothy that sort of seals the deal,
“Now we know that the law is good, if one uses it lawfully, 9 understanding this, that the law is not laid down for the just but for the lawless and disobedient, for the ungodly and sinners, for the unholy and profane, for those who strike their fathers and mothers, for murderers, 10 the sexually immoral, men who practice homosexuality, enslavers, liars, perjurers, and whatever else is contrary to sound doctrine, 11 in accordance with the gospel of the glory of the blessed God with which I have been entrusted.” 1 Timothy 1:8-11
What is plain is that everyone needs to obey the Law of God and that the Law of God must be used lawfully. Which means in accord with God’s Word. We also see that this Law is in accord with the gospel of glory (v.11). They cannot be separated.
Remember what James says, “You see that a person is justified by works and not by faith alone” James 2:24. Well, doesn’t that put a wrench in most Christian’s understanding of the Law!
Oh, and remember what Hebrews says,
And the Holy Spirit also bears witness to us; for after saying,16 “This is the covenant that I will make with them after those days, declares the Lord: I will put my laws on their hearts, and write them on their minds,” Hebrews 10:15-16
This makes one wonder why God would put His Law in our hearts and minds if we were not supposed to obey the Law. What most of us fail to understand is that Christ freed us from the curse of the Law, not from the Law itself. Being restored in the image of Christ means that we live like Him, and He obeyed the Law.
This, of course, deserves more discussion because Christians eat bacon and God’s Law says not to. So what’s up with that? Well, part of the answer can be found here in my sermon on Mark 6:45-7:23. And a fuller answer will come in later posts.