Heb. 12:29 - God is a consuming fire (of love in heaven, of purgation in purgatory, or of suffering and damnation in hell).
1 Cor. 3:10-15 - works are judged after death and tested by fire. Some works are lost, but the person is still saved. Paul is referring to the state of purgation called purgatory. The venial sins (bad works) that were committed are burned up after death, but the person is still brought to salvation. This state after death cannot be heaven (no one with venial sins is present) or hell (there is no forgiveness and salvation).
1 Cor. 3:15 if any mans work is burned up, he will suffer loss, though he himself will be saved, but only as through fire. The phrase for "suffer loss" in the Greek is "zemiothesetai." The root word is "zemioo" which also refers to punishment. The construction zemiothesetai is used in Ex. 21:22 and Prov. 19:19 which refers to punishment (from the Hebrew anash meaning punish or penalty). Hence, this verse proves that there is an expiation of temporal punishment after our death, but the person is still saved. This cannot mean heaven (there is no punishment in heaven) and this cannot mean hell (the possibility of expiation no longer exists and the person is not saved).
1 Cor. 3:15 further, Paul writes he himself will be saved, "but only" (or yet so) as through fire. He will be saved in the Greek is sothesetai (which means eternal salvation). The phrase "but only" (or yet so) in the Greek is "houtos" which means "in the same manner." This means that man is both eternally rewarded and eternally saved in the same manner by fire.
1 Cor. 3:13 - when Paul writes about God revealing the quality of each man's work by fire and purifying him, this purification relates to his sins (not just his good works). Protestants, in attempting to disprove the reality of purgatory, argue that Paul was only writing about rewarding good works, and not punishing sins (because punishing and purifying a man from sins would be admitting that there is a purgatory).
1 Cor. 3:17 - but this verse proves that the purgation after death deals with punishing sin. That is, destroying God's temple is a bad work, which is a mortal sin, which leads to death. 1 Cor. 3:14,15,17 - purgatory thus reveals the state of righteousness (v.14), state of venial sin (v.15) and the state of mortal sin (v.17), all of which are judged after death.
1 Peter 1:6-7 - Peter refers to this purgatorial fire to test the fruits of our faith.
Jude 1:23 - the people who are saved are being snatched out of the fire. People are already saved if they are in heaven, and there is no possibility of salvation if they are in hell. These people are being led to heaven from purgatory.
Rev. 3:18-19 - Jesus refers to this fire as what refines into gold those He loves if they repent of their sins. This is in the context of after death because Jesus, speaking from heaven, awards the white garment of salvation after the purgation of fire (both after death).
Dan 12:10 - Daniel refers to this refining by saying many shall purify themselves, make themselves white and be refined.
Wis. 3:5-6 - the dead are disciplined and tested by fire to receive their heavenly reward. This is the fire of purgatory.
Sirach 2:5 - for gold is tested in the fire, and acceptable men in the furnace of humiliation.
Zech. 13:8-9 - God says 2/3 shall perish, and 1/3 shall be left alive, put into the fire, and refined like silver and tested like gold. The ones that perish go to hell, and there is no need for refinement in heaven, so those being refined are in purgatory.
Mal. 3:2-3 - also refers to God's purification of the righteous at their death.
Matt. 3:12; Luke 3:17 - John the Baptist said the Lord will burn the chaff with unquenchable fire. This unquenchable fire is the state of eternal separation from God, which the Church has called "hell" for 2,000 years. Some Protestant communities no longer acknowledge the reality of hell.
Matt. 25:41 - Jesus says, "Depart from me, you cursed, into the eternal fire prepared for the devil and his angels."
Matt. 25:46 - Jesus says, "they will go away into eternal punishment" which is in reference to this eternal fire.
Mark 9:47-48 - Jesus refers to hell as where the worm does not die and the fire is not quenched. It lasts forever.
2 Thess. 1:6-9 - the angels will come with flaming fire and the disobedient will suffer punishment of eternal destruction. It is important to note that "destruction" does not mean "annihilation," as some Protestant denominations teach. It means eternal exclusion from the presence of God.
Jude 6-7 - the rebelling angels, and Sodom and Gomorrah, serve as an example by undergoing a punishment of eternal fire.
Rev. 14:11 - the worshipers of the beast suffer and the smoke of their torment goes up for ever and ever.
Rev. 20:10 - they're tormented in the lake of fire and brimstone day and night forever and ever.
Isaiah 33:14 - "Who of us can dwell in the everlasting fire?" This is a reference to hell which is forever.
Isaiah 66:24 - their worm shall not die and their fire shall not be quenched. We cannot fathom the pain of this eternal separation from God.
Jer. 15:14 - in my anger a fire is kindled which shall burn forever. Hell is the proper compliment to the eternal bliss of heaven.
Judith 16:17 - in the day of judgment the Lord will take vengeance on the wicked and they shall weep in pain forever. Hell is a place that sinners have prepared for themselves by rejecting God, who desires all people to be saved in His Son Jesus Christ. God sends no one to hell.