For the power of the life-giving Spirit has freed you through Christ Jesus from the power of sin that leads to death.
References for Romans 8:2
The law of Moses could not save us, because of our sinful nature. But God put into effect a different plan to save us. He sent his own Son in a human body like ours, except that ours are sinful. God destroyed sin's control over us by giving his Son as a sacrifice for our sins.
He did this so that the requirement of the law would be fully accomplished for us who no longer follow our sinful nature but instead follow the Spirit.
References for Romans 8:4
Those who are dominated by the sinful nature think about sinful things, but those who are controlled by the Holy Spirit think about things that please the Spirit.
If your sinful nature controls your mind, there is death. But if the Holy Spirit controls your mind, there is life and peace.
For the sinful nature is always hostile to God. It never did obey God's laws, and it never will.
That's why those who are still under the control of their sinful nature can never please God.
But you are not controlled by your sinful nature. You are controlled by the Spirit if you have the Spirit of God living in you. (And remember that those who do not have the Spirit of Christ living in them are not Christians at all.)
Since Christ lives within you, even though your body will die because of sin, your spirit is alive because you have been made right with God.
References for Romans 8:10
The Spirit of God, who raised Jesus from the dead, lives in you. And just as he raised Christ from the dead, he will give life to your mortal body by this same Spirit living within you.
So, dear brothers and sisters, you have no obligation whatsoever to do what your sinful nature urges you to do.
References for Romans 8:12