Immutable law decrees it, and not simply the ruling of an all wise power.

The soul who fails to attain to the celestial glory, fails to walk in the straight and narrow path which leads to it.

Such a person wanders in the by-paths called sin, and no power in the universe can arbitrarily put him in an environment with which he cannot function.
'To be carnally minded is death', said Paul.

'The wages of sin is death', or in other words, he who persistently avoids the Celestial Highway will never arrive at the Celestial Gate.

He who works evilly will obtain evil wages.