James says that faith without works is the faith of demons.
If you love God, you heed his word. Christ himself said this. If not, then your faith is without love. Certainly God can save someone of no works regardless, based on his heart, but such a heart is contrite, mournful, begging God for mercy, like the Publican; such a heart is not preaching that works are superfluous, this is Satanic work. Such a heart is deeply remorseful for their lack. God can save even a rapist and murderer if he is remorseful and crying to God and beating his breast and fasting and weeping...but you're pushing your luck if you start preaching rape and murder as no real concern so long as you have faith.