R.A.Torrey puts it quite well: It is the blood of Christ that takes away the guilt of sin; the Holy Spirit in us that takes away the power of sin; when Jesus comes again we will no longer be in the presence of sin.
Whether a believer is Calvinist with little power of choice, or an Arminian where it is all choice, the reality for a genuinely converted believer with either belief is that the last thing he or she wants to do is to continue in sin of any kind. He or she has been given a new heart and therefore their greatest desire is to honour Christ in all they do. This is what Christian conversion actually is.
The hypocrite will follow the commandments, not because it is in his heart to do, but either through fear of the consequences, going to hell, or for show and praise of others.
The genuine convert, because the guilt has been removed through the blood of Jesus, he has no fear of any consequences, nor of going to hell and he is no longer subject to the fear of praise of man. He loves God with all his heart, soul and strength, therefore the honour of Christ in the way he conducts himself is of paramount importance to him.