God offers a free gift to us through his Grace. That gift is salvation. Salvation is found in Christ and his sacrifice on the cross for our sins and His resurrection 3 days later. He showed perfect obedience as a man just like us to do Gods will which was pleasing and acceptable to God. By this he rose again from death and defeated the power of death and sin. The wages of sin is death but believing in Jesus leads to life.
Jesus was the promised messiah who would come and the ultimate sacrifice that atoned us for sin and made us righteous before God. We are no longer slaves to sin where we are forever trying to keep the laws and failing on our own merit. We are not saved by good deeds but by the free gift from God which is forgiveness for our sins through Jesus Christ.
By accepting Gods free gift of grace through Jesus Christ we are made a new person in God. We defeat our fleshly natures. Because we on our own with our sinful nature dont have the power. But by believing what Christ has said and accepting this we will live with the spirit of God in our hearts and minds guiding and empowering us. So it is no longer us that do this but the free gift from God which transforms us. And the only thing we have to do is believe this and accept it.
Romans 6: 6 - 14
6 What shall we say, then? Shall we go on sinning so that grace may increase? 2 By no means! We are those who have died to sin; how can we live in it any longer? 3 Or don’t you know that all of us who were baptized into Christ Jesus were baptized into his death? 4 We were therefore buried with him through baptism into death in order that, just as Christ was raised from the dead through the glory of the Father, we too may live a new life.
5 For if we have been united with him in a death like his, we will certainly also be united with him in a resurrection like his. 6 For we know that our old self was crucified with him so that the body ruled by sin might be done away with,[
a] that we should no longer be slaves to sin— 7 because anyone who has died has been set free from sin.
8 Now if we died with Christ, we believe that we will also live with him. 9 For we know that since Christ was raised from the dead, he cannot die again; death no longer has mastery over him. 10 The death he died, he died to sin once for all; but the life he lives, he lives to God.
11 In the same way, count yourselves dead to sin but alive to God in Christ Jesus. 12 Therefore do not let sin reign in your mortal body so that you obey its evil desires. 13 Do not offer any part of yourself to sin as an instrument of wickedness, but rather offer yourselves to God as those who have been brought from death to life; and offer every part of yourself to him as an instrument of righteousness. 14 For sin shall no longer be your master, because you are not under the law, but under grace.
If you continue to read Romans 6 it tells you about being a slave to righteousness. You are either a slave to sin or a slave to obedience to God through Jesus Christ.
15 What then? Shall we sin because we are not under the law but under grace? By no means! 16 Don’t you know that when you offer yourselves to someone as obedient slaves, you are slaves of the one you obey—whether you are slaves to sin, which leads to death, or to obedience, which leads to righteousness? 17 But thanks be to God that, though you used to be slaves to sin, you have come to obey from your heart the pattern of teaching that has now claimed your allegiance. 18 You have been set free from sin and have become slaves to righteousness.
Romans 6 - Dead to Sin, Alive in Christ - What - Bible Gateway