Morality can be based only on religion, but morality and religion are not one. Morality as a principle does not exists without religion even though morality as a practice, as a particular case of behavior, is not dependant directly on religiousness.

A common argument that connects them both is the other world, it is a religious world; because it is a superior world, it is a moral world.

This shows both the interdependence of religion and morality as well as their independence of each other. There is a certain inner consistency that is not automatic, mathematical, or logical but rather practical; divergencies are possible but sooner or later the dependence is reestablished.

Atheism, after all, ends up as a negation of morality, and every true moral transformation starts with a religious renewal. Morality is religious rules of behavior - that is, mankind's attitude towards one another in accordance with the fact of God's existence.

To have to fulfill our duties regardless of the difficulties and risks we face (this being moral behavior as distinguished from behavior motivated by interest), such a demand can be justified only if this world and this life are not the only world and the only life. This is the common starting point of morality and religion.