My earlier post referred to Romans 6:14 in its context which I contend is not too difficult to understand. So I present the passage below along with some related passages and some thoughts about what these words of saint Paul teach Christians to do and believe.
Here is the passage:
What then shall we say? Shall we persist in sin that grace may abound? Of course not! How can we who died to sin yet live in it? Or are you unaware that we who were baptised into Christ Jesus were baptised into his death? We were indeed buried with him through baptism into death, so that, just as Christ was raised from the dead by the glory of the Father, we too might live in newness of life. For if we have grown into union with him through a death like his, we shall also be united with him in the resurrection. We know that our old self was crucified with him, so that our sinful body might be done away with, that we might no longer be in slavery to sin. For a dead person has been absolved from sin. If, then, we have died with Christ, we believe that we shall also live with him. We know that Christ, raised from the dead, dies no more; death no longer has power over him. As to his death, he died to sin once and for all; as to his life, he lives for God. Consequently, you too must think of yourselves as (being) dead to sin and living for God in Christ Jesus. Therefore, sin must not reign over your mortal bodies so that you obey their desires. And do not present the parts of your bodies to sin as weapons for wickedness, but present yourselves to God as raised from the dead to life and the parts of your bodies to God as weapons for righteousness. For sin is not to have any power over you, since you are not under the law but under grace.
Romans 6:1-14
The faithful who are baptised are dead to sin and to the law and have risen to life in communion with Jesus Christ. The death in which the faithful share frees them from all the curses that disobedience to the law can bring. And the resurrection in which the faithful participate, through their union with Christ, is a new life in the Spirit of God which sets one free from the law that condemns and beings death. Paul explains the condemning and killing aspect of the Law at some length in 2 Corinthians 3 thus:
Are we beginning to commend ourselves again? Or do we need, as some do, letters of recommendation to you or from you? You are our letter, written on our hearts, known and read by all, shown to be a letter of Christ administered by us, written not in ink but by the Spirit of the living God, not on tablets of stone but on tablets that are hearts of flesh. Such confidence we have through Christ toward God. Not that of ourselves we are qualified to take credit for anything as coming from us; rather, our qualification comes from God, who has indeed qualified us as ministers of a new covenant, not of letter but of spirit; for the letter brings death, but the Spirit gives life.
Now if the ministry of death, carved in letters on stone, was so glorious that the Israelites could not look intently at the face of Moses because of its glory that was going to fade, how much more will the ministry of the Spirit be glorious? For if the ministry of condemnation was glorious, the ministry of righteousness will abound much more in glory. Indeed, what was endowed with glory has come to have no glory in this respect because of the glory that surpasses it. For if what was going to fade was glorious, how much more will what endures be glorious. Therefore, since we have such hope, we act very boldly and not like Moses, who put a veil over his face so that the Israelites could not look intently at the cessation of what was fading. Rather, their thoughts were rendered dull, for to this present day the same veil remains unlifted when they read the old covenant, because through Christ it is taken away. To this day, in fact, whenever Moses is read, a veil lies over their hearts, but whenever a person turns to the Lord the veil is removed. Now the Lord is the Spirit, and where the Spirit of the Lord is, there is freedom. All of us, gazing with unveiled face on the glory of the Lord, are being transformed into the same image from glory to glory, as from the Lord who is the Spirit.
2 Corinthians 3:1-18
Furthermore Paul explains what law Christians are to follow - a new law of the Spirit and not the old law of the letters which kill. He explains it thus:
Hence, now there is no condemnation for those who are in Christ Jesus. For the law of the spirit of life in Christ Jesus has freed you from the law of sin and death. For what the law, weakened by the flesh, was powerless to do, this God has done: by sending his own Son in the likeness of sinful flesh and for the sake of sin, he condemned sin in the flesh, so that the righteous decree of the law might be fulfilled in us, who live not according to the flesh but according to the spirit. For those who live according to the flesh are concerned with the things of the flesh, but those who live according to the spirit with the things of the spirit. The concern of the flesh is death, but the concern of the spirit is life and peace. For the concern of the flesh is hostility toward God; it does not submit to the law of God, nor can it; and those who are in the flesh cannot please God. But you are not in the flesh; on the contrary, you are in the spirit, if only the Spirit of God dwells in you. Whoever does not have the Spirit of Christ does not belong to him. But if Christ is in you, although the body is dead because of sin, the spirit is alive because of righteousness. If the Spirit of the one who raised Jesus from the dead dwells in you, the one who raised Christ from the dead will give life to your mortal bodies also, through his Spirit that dwells in you. Consequently, brothers, we are not debtors to the flesh, to live according to the flesh.
Romans 8:1-12
Thus Christians are left in no doubt that the law is just and good and holy and Christians are also left in no doubt that obedience to the law cannot bring life to those who have sinned. What brings life is God's mercy and grace through Jesus Christ. And whatever people may say about an obligation to life one's life in obedience to the law a Christian ought to know that labouring under the law in that way will only being guilt and condemnation. Instead the faithful walk as the Spirit leads and their walk with God is not a labour of legal obedience but a response of love born of mercy and grace in the heart. "Your sins are forgiven" says the Lord and who can condemn you if the Son sets you free?
So while it is good and highly desirable to avoid all the wicked things that the law prohibits - such as murder, theft, adultery, dishonesty, disrespect for God and for parents, false worship of false gods or of the true God through images of any sort, greedily desiring the possessions of others, and greedily desiring another person's spouse or other person that are connected to that person - it is not a means of salvation but rather a guide to lead you to Christ. Those who fall ought to have confidence that repentance will bring merciful forgiveness and strength to "fight the goof fight" by turning from the sins that tempt and turning to God for help in times of trouble.
No Christian advocates doing wicked things.
However some people do advocate keeping the seventh day as a Christian requirement to be enjoined on every person who comes to Christ in faith. This is where the arguments about being "under the law" turn into arguments about obeying the ten commandments as they are stated in Exodus 20 with special emphasis on keeping Sabbath on the seventh day (Saturday). But since Sabbath threads abound on this forum I shall not canvass that Issue more in this reply.
May God keep all who read faithful and free with the liberty with which Christ has set you free.