>>12398866Hebrews 2:14 King James Version
14 Forasmuch then as the children are partakers of flesh and blood, he also himself likewise took part of the same; that through death he might destroy him that had the power of death, that is, the devil;
https://studybible.info/CLV/rev%2020:10Revelation 20:10
CLV(i) 10 And the Adversary who is deceiving them was cast into the lake of fire and sulphur, where the wild beast and where the false prophet are also. And they shall be tormented day and night for the eons of the eons."
https://studybible.info/YLT/Revelation%2020:10Revelation 20:10
YLT(i) 10 and the Devil, who is leading them astray, was cast into the lake of fire and brimstone, where are the beast and the false prophet, and they shall be tormented day and night—to the ages of the ages.
https://studybible.info/Rotherham/Revelation%2020:10Revelation 20:10
Rotherham(i) 10 and, the Adversary that had been deceiving them, was cast into the lake of fire and brimstone, where [were] both the wild-beast and the false-prophet; and they shall be tormented, day and night, unto the ages of ages.
The idea of the salvation of all is not a new idea. This doctrine was stamped out for political reasons. The roman empire eventually became a Christian Theocracy, and telling everyone that in the end they will be saved is bad for politics and governing the plebs.
https://www.tentmaker.org/Quotes/churchfathersquotes.htm