Satan wants, above all, morals to be decoupled from Christ, so that a man thinks that 'doing good ' in this world is enough.
It isn't.
Discussion
Morals cannot be decoupled from Christ.
Either something is moral or not.
If you mean that Satan tricks people into following immorality with the perception of being moral, I believe this assertion would be accurate.
Of course they can't.
What the devil would like is for man to believe that he can do good, have good morals, without Christ.
This post was a quote from a movie by the way.
