I have seen quote #4
Your quotes are mistaken. The penalty lasts forever, not the suffering. The quotes that you mention do not say that sinners live forever.
Those Bible quotes do not say that people will exist forever in hell.
Dan 12:2 - "And many of those who sleep in the dust of the earth shall awake, some to everlasting life, and some to shame and everlasting contempt."
No mention of living forever in Hell.
Dan 12:3 - "And those who are wise shall shine like the brightness of the sky above;fn and those who turn many to righteousness, like the stars forever and ever."
No mention of living forever in Hell.
Matt 25:46 - "And these will go away into eternal penalty, but the righteous into eternal life."
No mention of living forever in Hell.
John 5:28 - "Do not marvel at this, for an hour is coming when all who are in the tombs will hear his voice"
No mention of living forever in Hell.
Rev 20:14 - "Then Death and Hades were thrown into the lake of fire. This is the second death, the lake of fire"
No mention of living forever in Hell.
Rev 20:15 - "And if anyones name was not found written in the book of life, he was thrown into the lake of fire."
No mention of living forever in Hell.
As I said, suffering is not eternal.
It's an eternal penalty in that you get no more chances - you are dead, and stay dead. Hence eternal penalty.
"pen·al·ty [pen-l-tee] Show IPA
noun, plural pen·al·ties.
1.
a punishment imposed or incurred for a violation of law or rule.
2.
a loss, forfeiture, suffering, or the like, to which one subjects oneself by nonfulfillment of some obligation.
3.
something that is forfeited, as a sum of money.
4.
a disadvantage imposed upon one of the competitors or upon one side for infraction of the rules of a game, sport, etc.
5.
consequence or disadvantage attached to any action, condition, etc."
Whether you use penalty or punishment it's the same. And, by your own scripture:
"Your quotes are mistaken. The penalty lasts forever, not the suffering. The quotes that you mention do not say that sinners live forever."
- So the punishment/penalty lasts forever. What do you think the penalty/punishment is?
""And many of those who sleep in the dust of the earth shall awake, some to everlasting life, and some to shame and everlasting contempt."
- So there is everlasting contempt to certain people? Not very forgiving.
"Matt 25:46 - "And these will go away into eternal penalty, but the righteous into eternal life."
- So they will have eternal punishment/penalty. What do you think that penalty/punishment is?
So let's make a comparison between hell and prison. Let's say a person goes to prison for life and is originally in isolation. He later is let out into the general population. He is still being punished to correct his behavior (to keep his behavior in check in prison) regardless of whether he's in isolation or not. However, that punishment is finite and serves a purpose other than vengeance.