I think that this speaks to Catholics and Protestants alike in that God says we sin not doing the good we know we ought to do (I think the nuns who taught me in grade school would call that a "sin of omission").Correct.
And, FYI, this is the "morality which cannot be legislated," in case anyone tries to tell you that laws against (e.g., homosexual activity) are invalid because "you can't legislate morality."
Their take on the old saying is erroneous, but quite convenient. Few recall the actual meaning...
I usually only have someone try and tell me that "You can't legislate morality" once. When they tell me that I ask them, "Really? Then why is prostitution illeagal?" The fact is that all laws are based on a code of moral conduct.
It's just that some people have a hard time admitting it. ;-)