He cannot forget

(J. A. James, "Christian Mercy Explained and Enforced")

"Whoever does not obey the Son shall not see life,
 but the wrath of God remains on him." John 3:36

The Christian realizes that the whole human race is in
a state of sin and ruin; suffering all the consequences
of sin in this world--and exposed to the bitter pains of
eternal death in the world to come. He is convinced
that without a fitness for the pure and spiritual joys of
heaven, not one individual of all the millions who are
continually passing into eternity, can ascend to the
realms of glory and felicity. They appear, in his eyes,
to be actually perishing, and hence he is filled with
the tenderest concern, and affected with the deepest
sorrow. In his estimation . . .
  the most agonizing diseases,
  the most pinching poverty,
  the greatest deprivation,
  and the heaviest cares,
are as nothing, compared with those miseries
which sin has brought upon the deathless soul.

He cannot forget, that the soul, if not saved, will
become immortal in its suffering and wretchedness.

"Whoever does not obey the Son shall not see life,
 but the wrath of God remains on him." John 3:36