We have learned that sin came into the world through Adam, and death by sin. Understand that the wages of sin is death. You've got to understand that you can never be "too close to God" not to suffer the consequences of sin. And for a man who's not saved, he's perpetually in bondage until he repents.
Death began to reign from the very moment man sinned. Until Jesus came with eternal life. But we return power to death whenever we sin (referring to Christians who sin). Sin gives death a legal right over a person. And make no mistakes about it, this death is real. That a man doesn't die physically (yet) doesn't mean he isn't suffering death - the law of death swiftly sets in.
We are servants of whatever we obey. To yield to sin, especially willingly, is to deny Christ the Lordship over you. Sin, no matter how nicely dressed it is, no matter how delicious it tastes, and no matter how rewarding it seems, is deadly. The wages of sin can never be life, it is always death.
Sin is lawlessness. "Every one who is guilty of sin is also guilty of violating Law; for sin is the violation of Law." Salvation made us new and gave us new natures, but it didn't take away our right and ability to choose and make decisions. Every decision, every choice we make either keeps us under the Lordship of Christ or shows us to be lawless. Shall we then continue to sin? God forbid.
We received power to be the sons of God. In other words, sin has no power over us until we submit to it. Therefore, watch your thoughts, for you become what you think. Guard your heart with all diligence, whatever you allow to get into your heart becomes food for your thought. Hold tightly to the eternal life that you received; and refuse to be deceived again by sin.