Romans 7

1 The first verses here describe the idea that a dead body is no longer affected by the law. In a similar way, a Christian is dead to the law in that he is no longer tempted to break it, nor is he forever condemned by it in God's eyes.
4 Our relationship with God is often described in the Bible in terms of marriage. This is because marriage is the most intimate relationship and commitment between a man and a woman. Our relationship with God is to be just as intimate in a spiritual sense, not a sensual one.

Everyone is born with a sinful nature, and in affect, we are "married" to the world although we rightfully belong to God. When a Christian "dies" to the world by faith in Jesus his marriage to the world is no longer in effect. He is now free to establish a proper relationship with God without hindrance from sin.

7 To the worldly man, the concept of sin is rather vague. He requires that sin be defined in a specific way so that he knows what is morally unacceptable.
8 The sinful nature in people causes them to desire to break the laws. Thus, while the law is morally correct, people feel compelled to break the laws and suffer the physical and spiritual consequences.
9 When Adam and Eve were created, they were only given one law. They broke that law and the consequence was death in the world (physical death as well as the more sever consequence of separation from God). We inherited their sinful nature and are subject to the same penalty.
11 The sinful nature deceives us by saying that the law does not really matter, or that we are only guilty if we are caught and convicted. The truth is that the law does matter and even if we are never caught or convicted, we are still subject to the wrath of God.
13 The law is neither evil nor deadly, but our sinful disobedience is both.
14 The Law is spiritual because they involve choices of the will. For instance, there is nothing intrinsic in a typical human that would compel another to love or hate him. However, because the Law says, "love your neighbor as you love yourself," there is a choice to be made. This choice explains why a person can be loved by some, hated by some, and considered indifferently by others. There are many reasons why people love or hate others, but God's Law commands us to love all others on a spiritual level, which exceeds all other reasons. This choice of the will can help one to love another when he might otherwise not want to.

Why do people, even those following the Law, choose not to follow it? This mystery is tied to the sin that is present in this physical world and has infected our bodies and minds. "Flesh" here certainly refers to the physical body, but also extends into the mind. Sin starts in the mind and manifests itself in the body.

15 Both Christian and non-Christian must struggle with this contradiction (a.k.a., hypocrisy) between their beliefs and their actions. For instance, most people would agree that stealing is wrong, but some of these will do it anyway, even if it is on a trifling level. And again, most people would agree that peace is better than strife, but almost everyone is guilty of fighting or gossiping. Why do we do such things? Most of us don't even know. We seem compelled by something in ourselves that is beyond our power to control. That something is called sin.
18 On one hand, sin (i.e., the desire to act on our own instead of following God) is something that is inherent in us. The Bible tells us that every person who ever lived (except Jesus) inherited the sinful nature from parents and ancestors. Thus, every person is tainted. Just as one drop of poison can contaminate a tank of water, inherited sin affects all aspects of our lives. Even when we acknowledge God's ways we seem to be helpless to follow it.
24 It is so frustrating to want to do what is right, but seem incapable of doing it. It is exasperating to hold high principles only to slip up in even minor ways. Even though we want to do what is right, we often find ourselves violating our principles. Despite our noble desires, we still do evil and are accountable to God for our actions. God is very clear that sin is punishable by death. Is there any hope for us?
25 Thank God, yes! Jesus lived a perfect life on our behalf. What we seem incapable of doing He did for us, and we live vicariously through Him by faith. We are still compelled spiritually to obey God, but when we "miss the mark" Jesus takes the penalty for us. Those who do not know Jesus do not have this benefit. Christians must be willing to share this great news so that those who want to escape the burden of hypocrisy might find the way to do so.