I can change my mind, but only the Holy Spirit can change my heart. Divine love can only be divinely imparted.
Thus the Old Testament prophets, Jesus himself, and his apostles all attribute the divine power in his (Jesus) ministry not to the uniqueness of his deity, but rather to the ministry of the Holy Spirit through him.
The 'religious spirit,' it's demonic, and it attempts to substitute a demonic power or a fleshly power for the power of the Holy Spirit. And the 'religious spirit' is more concerned with what we look like than what we really are.