The Table Spread - 5:80
You see many of them befriending the disbelievers. How evil is that which their souls have sent for them. Allah has wrath on them; they will remain in torment forever.
The disbelievers will remain in torment forever:
Prophet Hud/11:106
The unfortunate are in the Fire. They will groan therein.
Prophet Hud/11:107
They will abide therein as long as the heavens and the earth endure, except if your Lord wills. Your Lord is the Doer of whatever He wills
The Heights/7:40
The gates of heaven will not open for those who deny Our Verses and are arrogant against them, and they will not enter Paradise until the camel passes through the eye of a needle. This is how We punish the guilty.