Yes, the emotion, the drive to try to do right, is essential. However, as shown time and time again, the verification of that emotion is not through profession, but through action. The outward sign of your internal beliefs is what you do. If you Profess Christ but do not show it through behavior, you will still be known by what you do, not what you say.
We are charged with the Knowledge of Right & Wrong and with trying to do what is right. Jesus is most certainly speaking of how we should think, feel and love. But unless those internals are reflected in
and correspond with, your external actions, it means nothing.
Aslan is not a Tame Lion