Romans 3:21-24
21 But now, apart from the law, God's righteousness has been revealed--attested by the Law and the Prophets 22 --that is, God's righteousness through faith in Jesus Christ, to all who believe, since there is no distinction. 23 For all have sinned and fall short of the glory of God.
HCSBIsaiah 64:6
All of us have become like one who is unclean,
and all our righteous acts are like filthy rags;
NIV
Given that fact that we all failed to measure up to God's holy and perfect law and we are all sinners under condemnation what is the outcome of our predicament, well its hell of course but what is hell. Is it a place where we are tormented by devils with pitchforks, or some other imagery such as found in Dante's infernal? The Bible is specific on what exactly hell is and to that end, here's a few passages that detail its attributes.
First off Hell was not made for man though because of his sin he/she deserves it but rather it was created for the devil and the angels that rebelled with him.
Matthew 25:41
41 Then He will also say to those on the left, 'Depart from Me, you who are cursed, into the eternal fire prepared for the Devil and his angels!Revelation 20:10
10 The Devil who deceived them was thrown into the lake of fire and sulfur where the beast and the false prophet are, and they will be tormented day and night forever and ever.
Its also a place of darkness
Matthew 22:13
13 "Then the king told the attendants, 'Tie him up hand and foot, and throw him into the outer darkness, where there will be weeping and gnashing of teeth.'
Most of the passages however deal with the torment dealt by unending fire. In fact in the book of revelation its called a lake of fire. While darkness does abound, that doesn't diminish the fact that it will be a lake of fire.
Matthew 18:8-9
8 If your hand or your foot causes your downfall, cut it off and throw it away. It is better for you to enter life maimed or lame, than to have two hands or two feet and be thrown into the eternal fire.Luke 3:17
His winnowing shovel is in His hand to clear His threshing floor and gather the wheat into His barn, but the chaff He will burn up with a fire that never goes out."Revelation 20:10
10 The Devil who deceived them was thrown into the lake of fire and sulfur where the beast and the false prophet are, and they will be tormented day and night forever and ever.Revelation 21:8
But the cowards, unbelievers, vile, murderers, sexually immoral, sorcerers, idolaters, and all liars--their share will be in the lake that burns with fire and sulfur, which is the second death.
There is finality with hell, there are no second chances, once the judgment has been rendered people are cast into the lake of fire for all of eternity. Some people think that Luke 16 is a parable describing the need to repent, true we are to consider how we act now but unlike every other parable Jesus used, this one has people's names. For that reason I believe its less of a made up story to convey a message but rather an actual place
Luke 16:19-31
19 "There was a rich man who would dress in purple and fine linen, feasting lavishly every day. 20 But a poor man named Lazarus, covered with sores, was left at his gate. 21 He longed to be filled with what fell from the rich man's table, but instead the dogs would come and lick his sores. 22 One day the poor man died and was carried away by the angels to Abraham's side. The rich man also died and was buried. 23 And being in torment in Hades, he looked up and saw Abraham a long way off, with Lazarus at his side. 24 'Father Abraham!' he called out, 'Have mercy on me and send Lazarus to dip the tip of his finger in water and cool my tongue, because I am in agony in this flame!'25 " 'Son,' Abraham said, 'remember that during your life you received your good things, just as Lazarus received bad things, but now he is comforted here, while you are in agony. 26 Besides all this, a great chasm has been fixed between us and you, so that those who want to pass over from here to you cannot; neither can those from there cross over to us.'
27 " 'Father,' he said, 'then I beg you to send him to my father's house-- 28 because I have five brothers--to warn them, so they won't also come to this place of torment.'
29 "But Abraham said, 'They have Moses and the prophets; they should listen to them.'
30 " 'No, father Abraham,' he said. 'But if someone from the dead goes to them, they will repent.'
31 "But he told him, 'If they don't listen to Moses and the prophets, they will not be persuaded if someone rises from the dead.'"
We see here the full finality of the judgment. God opens up the books for the great white judgment and the people are judged by their deeds and punished according to their sins. Not everyone faces this judgment, only those who rejected the offer of forgiveness and salvation from God. Those people are clothed in Christ's righteousness and we are saved by grace. This group of people chose to believe reject that, or believe that they're not bad enough to go to hell.
Revelation 20:11-15
11 Then I saw a great white throne and One seated on it. Earth and heaven fled from His presence, and no place was found for them. 12 I also saw the dead, the great and the small, standing before the throne, and books were opened. Another book was opened, which is the book of life, and the dead were judged according to their works by what was written in the books.13 Then the sea gave up its dead, and Death and Hades gave up their dead; all were judged according to their works. 14 Death and Hades were thrown into the lake of fire. This is the second death, the lake of fire. 15 And anyone not found written in the book of life was thrown into the lake of fire.
For people who believe that the punishment in hell is finite, this passage paints a different and sobering picture
2 Thessalonians 1:5-10
It is a clear evidence of God's righteous judgment that you will be counted worthy of God's kingdom, for which you also are suffering, 6 since it is righteous for God to repay with affliction those who afflict you, 7 and to reward with rest you who are afflicted, along with us. This will take place at the revelation of the Lord Jesus from heaven with His powerful angels, 8 taking vengeance with flaming fire on those who don't know God and on those who don't obey the gospel of our Lord Jesus. 9 These will pay the penalty of everlasting destruction, away from the Lord's presence and from His glorious strength,
To summarize, it's a physical place that was initially created for the fallen angels, but it is now also a place where anyone who rejected God's offer of salvation goes. God spent thousands of years laying out his plan of salvation so taht people would not perish but be reconciled to him. Still for various reasons people choose darkness instead of the light and fellowship of God.
2 Peter 3:9
The Lord does not delay His promise, as some understand delay, but is patient with you, not wanting any to perish, but all to come to repentance.
God's very character demands that he punish sin, so much so he decided to pay that penalty himself and that payment is open to anyone who's willing to accept it. If people reject that gift and its their right as people with free will but that decision then means they must accept the consequences of their actions. Its much easier for someone to deny the existence of hell then to come face to face with the fact that they are a sinner who's facing eternal judgment.
