Why I Think It's Just and Fair Not to Give Second Chances After Death to Unsaved Sinners

It could be a controversial issue that if God is merciful then why doesn't He give second chances after death. I wanted to ask myself that question many times which I assumed was all part of His perfect justice. I assumed that He doesn't give any chance after death because He can't allow sin to enter into Heaven. Any impure spiritual being such as Satan and his angels or anybody who died in their sins has to be rejected by God in His Kingdom because He is holy.

Would a person suddenly change their minds after death? I remembered looking at some Christian comics in the past and some of them show a picture of a person who decides to accept Christ now he's in Hell. But is it even possible for those who died in their sins to suddenly change their mind? There's nothing in the Bible to suggest that. I think here's one meaningful excerpt from Got Questions
What about those who do not believe? Wouldn’t they repent and believe if they were given a second chance? The answer is no, they would not because their hearts are not changed simply because they die. Their hearts and minds "are at enmity" against God and won’t accept Him even when they see Him face to face. This is evidenced clearly in the story of the rich man and Lazarus in Luke 16:19-31. If ever someone should have repented when given a second chance to see clearly the truth, it was the rich man. But although he was in torment in hell, he only asked that Abraham send Lazarus back to earth to warn his brothers so they didn’t have to suffer the same fate. There was no repentance in his heart, only regret for where he found himself. Abraham’s answer says it all: "And he said to him, If they do not hear Moses and the Prophets, they will not be persuaded, even though one rose from the dead" (Luke 16:31). Here we see that the witness of the Scriptures is sufficient for salvation for those who believe it, and no other revelation will bring about salvation to those who do not. No second, third or fourth chances would be enough to turn the heart of stone into a heart of flesh.

I would think that even if unsaved people see God face to face then their hearts will still continuously hardened in rebellion. I don't think it's even possible for them to think of why didn't they listen to the message of salvation. Verses that say that Hell is the place of weeping and gnashing of teeth (Matthew 8:12, 22:13, 24:51, 25:30 and Luke 13:28) suggest that it's a place of eternal cursing. Acts 7:54 has the whole council gnashing their teeth at Stephen. If that's the case then what's the use of granting chances to people who died in their sins if they're no longer capable of repenting? I even think of it that people in Hell will be cursing God for being "unfair" and "unjust" for sending them to Hell. They probably will still continue to curse God and hate Him and not even the torments of Hell will make the change their minds. They may even be saying God is wrong to send them to Hell because they were such "good people" on Earth for all eternity.

Besides, one should the situation in Matthew 7:21-23. Jesus already warned many will say on that day (Judgment Day) and even call him Lord, Lord. They will brag about the wonderful works that they have done in their name. Did these damned people before Him show a bit of humility? I think not. In fact, they continue to insist on their errors. They are not repenting one bit. I don't think these people who will brag before Jesus on Judgment Day will ever accept Him even if He gave them another chance. You can consider that these people are still arrogant and unrepentant. Did spending time in Hell really change their minds? It hasn't changed their minds one bit. I don't think that it would make sense to give them another chance for salvation after death in that case. 

What an irony that soon, they will be forced to bow down one day to declare Jesus is Lord (Philippians 2:10-11). I think when it happens they will only end up acknowledging that fact but still hate the fact that He is Lord.