Well, it does show the begging of the questions:
Does man have control over sin?
If yes, how much?
If no, then what?
Is there a relationship between doing sin and Salvation by God?
Is the Call of God to Repentance from Sin sufficient to begin repenting from sin?
Is the Perfecting of the Faith in one's self the attaining of freedom from doing sin?
Is there a difference between doing a sin and neglecting a virtue?
Do we struggle against sin as Christians for our Salvation?
Is our Salvation independent of our committing sin?
These are but a few in one of my small hands...