The lost will be sent to the lake of fire. They will suffer there and then their soul will be destroyed just like their body.
28: And fear not them which kill the body, but are not able to kill the soul: but rather fear him which is able to destroy both soul and body in hell. Matt. 10:28
The bottom line is that the wages of sin is death not immortality in Hell.
22: But now being made free from sin, and become servants to God, ye have your fruit unto holiness, and the end everlasting life.
23: For the wages of sin is death; but the gift of God is eternal life through Jesus Christ our Lord.
Romans 6:23
By the way our works must be perfect to save our souls from Hell. Why do I believe so? Because Jesus said so!
1: And unto the angel of the church in Sardis write; These things saith he that hath the seven Spirits of God, and the seven stars; I know thy works, that thou hast a name that thou livest, and art dead.
2: Be watchful, and strengthen the things which remain, that are ready to die: for I have not found thy works perfect before God.
3: Remember therefore how thou hast received and heard, and hold fast, and repent. If therefore thou shalt not watch, I will come on thee as a thief, and thou shalt not know what hour I will come upon thee.
4: Thou hast a few names even in Sardis which have not defiled their garments; and they shall walk with me in white: for they are worthy.
5: He that overcometh, the same shall be clothed in white raiment; and I will not blot out his name out of the book of life, but I will confess his name before my Father, and before his angels.
6: He that hath an ear, let him hear what the Spirit saith unto the churches.
Rev. 3:1-6
Why are they being reproved? Their works are not perfect. Verse2
What happens if they do not overcome?
Name blotted out of the book of life! Verse 5