Dead to the law ?
Paul is clear that the 10 commandments are not dead and clearly does not say we don't need to obey them.
Roms 3:31. 6:1,2 13:10.
Rom 7:7-9
7 What shall we say then? Is the law sin? God forbid. Nay, I had not known sin, but by the law: for I had not known lust, except the law had said, Thou shalt not covet. 8 But sin, taking occasion by the commandment, wrought in me all manner of concupiscence. For without the law sin was dead. 9 For I was alive without the law once: but when the commandment came, sin revived, and I died.
This is not saying that the law is dead.. it is death to us when we transgress it.
not law = no sin.
No sin = no death.
But Paul is saying we have grace and forgiveness by the death of Jesus. The law can not hold us guilty because of the death of Jesus.. verse 4 Wherefore, my brethren, ye also are become dead to the law by the body of Christ;
Sin = death
Jesus paid the price of death for us.
The law is not able to condemn us because of what Jesus did..
Do we make the law void because of what Jesus has done. No, Rom 3:31.
BTW
As you mentioned Rom3:31
Here’s Paul’s core gospel message in a nutshell:
The power of sin is the law 1Cor15:56 The legally binding law with the power to condemn.
But as Paul states, the law, what is written in it is holy, just and good (Rom7:12)
So what was God to do? He obviously would want to remove the power of sin, but he would not want to remove what is holy just and good.
The law comes in two parts, what is written in the law and the attached penalty for transgression. Nothing wrong at all with the first part, it is holy, just and good, its the second part that's the problem
So God did an incredible thing. He transferred the law/what is written in it, from an external law engraved in stone, and made it an internal law in the hearts and minds of believers(2Cor3:3&Heb10:15-17)) An external law does not mean you in your heart would want to obey it does it. But a law placed in your heart, does mean in your heart you want to follow it. So, what is holy, just and good remains intact, it is now in your heart and mind. It simply means in your mind you know how God wants you to live and in your heart you want to live that way. In your heart you do not want to murder, steal, commit adultery, covet, take the Lords name in vain etc. Hardly legalism! The law/what is written in the law that is now in your heart and mind cannot condemn you, you have no righteousness of obeying it, for Jesus died for your sins/your transgressions of the law: your sins and lawless deeds I will remember no more
Because, and only because you in your heart want to live as God desires you to live, he removed the penalty attached to the law for transgression from your life. He sent Jesus to die for your sins/your transgressions of the law. Therefore, the legally binding law with the power to condemn is removed from you. And therefore, the power of sin is also now removed from your life.
With the power of sin removed from your life, you can now live a far holier life, a life you in your heart want to live for that is where the law now is. And you can do that because you are not under law/righteousness of obeying the law, but under grace/righteousness of faith in Christ. Christ died to pay the penalty of your sin, and he died to break the power of sin. And so Paul states:
Do we then make void the law by faith/righteousness of faith in Christ not obeying the law? God forbid: Yea, we establish the law Rom3:31
And:
For sin shall no longer be your master for you are not under law/ righteousness of obeying the law, but under grace/righteousness of faith in Christ. Rom 6:14