How did you come to your conclusion that hell is temporary? Nowhere in scripture does it ever suggest that hell is anything but a permanent and eternal separation from God.
The punishment of the wicked dead in hell is described throughout Scripture as “eternal fire” (
Matthew 25:41), “unquenchable fire” (
Matthew 3:12), “shame and everlasting contempt” (
Daniel 12:2), a place where “the fire is not quenched” (
Mark 9:44-49), a place of “torment” and “fire” (
Luke 16:23-24), “everlasting destruction” (
2 Thessalonians 1:9), a place where “the smoke of torment rises forever and ever” (
Revelation 14:10-11), and a “lake of burning sulfur”
where the wicked are “tormented day and night forever and ever” (Revelation 20:10).
The punishment of the wicked in hell is as never ending as the bliss of the righteous in heaven. Jesus Himself indicates that punishment in hell is just as everlasting as life in heaven (
Matthew 25:46). The wicked are forever subject to the fury and the wrath of God. Those in hell will acknowledge the perfect justice of God (
Psalm 76:10). Those who are in hell will know that their punishment is just and that they alone are to blame (
Deuteronomy 32:3-5).