Psalm 106:18 KJB
This Psalm happens to be about how God protects His people who have faith in Him, but when His people fall into habitual sin and evil, He will always forgive and restore them to Himself whenever they repent.
But God will also always burn the wicked. Psalm 106:18 (KJB). Whom does God say these wicked are? Jesus, being God, surely could answer that question. If salt could lose its saltness; that is, its ability to preserve food, it would be worthless and should be thrown away. Matthew 5:13 (KJB). Trees which bring forth no good fruit whatsoever are cast into the fire. Matthew 7:19 (KJB). Christ will forgive any sin or evil upon repentance and faith, but the person who absolutely rejects the call of the Holy Spirit to repent does so because that person hates God, and God will never forgive that person because he is totally evil. Matthew 12:31-32 (KJB). Every human has a good treasure in his heart created by God, and every human also has an evil treasure planted into his heart by the Devil. Matthew 12:35; Genesis 1:31; Genesis 1:26-27; Genesis 3:15 (KJB). God created all humans to possess the "seed" of goodness, but the Devil planted his "tares" of evil. But in the end of the world, God will cause all of His righteous people to repent of being soiled by evil so that He can save them from eternal death, and He will cast their evil natures into an eternal flame. Only the "tares" planted by the Devil will be burned. Matthew 13:36-43; Revelation 5:11-14 (KJB). God will root up and destroy everything that the Devil has ever planted, and He will save all that He has planted. Matthew 15:13; Ecclesiastes 3:14; Psalm 36:6 (KJB). Clearly, Jesus taught that He will forever burn only that which is totally evil.
Good people who allow evil to dominate their lives can rightly be called evil, and sometimes God uses His fiery wrath to cast evil people into a burning Hell. Psalm 106:17 (KJB). God casts their good natures into Hell with their evil natures. But in the end of the world, God will use His fiery wrath to dissolve their beings to separate their repentant, good and living natures for Him to recreate from their totally dead and evil natures whom He will cast into the eternal lake of fire. Revelation 5:11-14; Revelation 20:11-15; Revelation 21:1-5; II Peter 3:9-13 (KJB).
Every person, except for sociopaths, can feel remorse for the sin and evil that they may do. But remorse is not the same as repentance. Repentance means that a person desires to be reconciled with God. But no one can feel remorse or repentance unless that person has a good nature. Judas Iscariot had remorse but no repentance. Matthew 27:3-5 (KJB). Simon Peter had both remorse and repentance. Matthew 26:74-75 (KJB). The rich man in Hell who asked Abraham to send Lazarus to preach to his five brothers so that they would repent and not come to Hell proved that he still retained his good nature. Luke 16:27-31 (KJB). Jesus Christ never changes. Hebrews 13:8 (KJB). The Love and compassion of Christ will always cause Him to forgive and reclaim every good and living nature of every human who ever repents and desires to be reconciled with God whether they are alive on the earth, or they are confined to one of the three regions of death. John 5:24; John 11:25-26; Revelation 5:11-14; Colossians 1:15-20; John 5:28-29; I Timothy 4:10 (KJB). Nowhere does the Bible teach that God will not save a person after their physical death. The only possible exception to this rule is the sociopath who so violently suppresses his good nature that he can feel no remorse. Such a person comes close to being totally evil. But since God can never lose anything He has ever created, then there must be some tiny amount of goodness even in the sociopath whom God will cause to repent and return to faith in Christ in the end of the world. Revelation 5:11-14; Ecclesiastes 3:14 (KJB).