Sometimes the more one grows in religious practice, the more he / she grows in self-righteousness and judgment.
This is a sign of a problem inside.
Growing in religion should only make us grow in compassion, not in judgment.
The heart filled with God is softened, not hardened.
If it is becoming hardened towards people, perhaps it is not God filling the heart, but rather the self, decorated by false cloak of Piety and religious devotion.