R C Sproul rightly shows that we dont know just how evil we are, and how very very good and holy God is, therefore eternal punishment seems so very harsh. Those in hell will not rail against God, for they will forever know their just desert.
I personally dont like hell. but we are created in Gods image and therefore eternal. God cannot annihilate us, not because He is unable, but because His attributes of wisdom and love to all beings binds Him by the very things that make Him God.
A holy and just God must make example of all rebellion, and without it heaven would not be kept in check. If Satan had seen hell before pride had entered, it is probable he might never have sinned.
But thats another topic altogether.
God alone is immortal. Immortality is something that is given to the saved. Never to the lost.
1Co_15:53 For this corruptible must put on incorruption, and this mortal must put on immortality.
1Co_15:54 So when this corruptible shall have put on incorruption, and this mortal shall have put on immortality, then shall be brought to pass the saying that is written, Death is swallowed up in victory.
1Ti 6:15 Which in his times he shall shew, who is the blessed and only Potentate, the King of kings, and Lord of lords;
1Ti_6:16 Who
only hath immortality, dwelling in the light which no man can approach unto; whom no man hath seen, nor can see: to whom be honour and power everlasting. Amen.
Eternal life is the gift of God to the saved. It is not ours by right of birth. Adam and Eve were not created immortal. They were created to be immortal if they had access to the tree of life.
Gen 3:22 And the LORD God said, Behold, the man is become as one of us, to know good and evil: and
now, lest he put forth his hand, and take also of the tree of life, and eat, and live for ever:
Gen 3:23 Therefore the LORD God sent him forth from the garden of Eden, to till the ground from whence he was taken.
At the resurrection, we are again given access to it.
Rev_2:7 He that hath an ear, let him hear what the Spirit saith unto the churches; T
o him that overcometh will I give to eat of the tree of life, which is in the midst of the paradise of God.
Rev_22:2 In the midst of the street of it, and on either side of the river, was there
the tree of life, which bare twelve manner of fruits, and yielded her fruit every month: and the leaves of the tree were for the healing of the nations.
Rev_22:14 Blessed are they that do his commandments,
that they may have right to the tree of life, and may enter in through the gates into the city.