“If, then, I do what I will not do, I agree with the law that it is good. But now, it is no longer I who do it, but sin that dwells in me” (Romans 7:16-17).
When you’re saved, God doesn’t fix you to where you can’t sin anymore but where you can’t sin and enjoy it. Romans 7:14 says, “…I am carnal, sold under sin.” Romans 7:18 says, “For I know that in me (that is, in my flesh) nothing good dwells…” Romans 7:21 again, “I find then a law, that evil is present with me…” Then in Romans 7:24 says, “O wretched man that I am! Who will deliver me from this body of death?”
We are free from the penalty of sin but we are not free from the presence of sin that causes temptation. We are free from the power of sin but we are not free from the possibility of sin which can cause failure.
We, who have been born of the Spirit of God, born from above, still have that principle of indwelling sin. The more mature we become in the Lord the more we see that we are sinners before God. Sin is no longer your Sovereign but sin still produces a stain upon the soul and it is your adversary. We do not become better, for in Christ we are positioned righteous, but we do run to Christ, turn to Christ, depend upon Christ, knowing our sinfulness but knowing His Saving Power over sin.