Combine Matt 25 with Rev 20:10 and there is every reason to understand the lake of fire as being forever and ever.Regarding Mathew 25, We've been over this. I've pointed out that "aionios" doesn't mean eternal. Translators have let their theology influence their translation.
From Strong's Exhaustive Concordance re: aionios -
aiōnios
1) without beginning and end, that which always has been andalways will be
2) without beginning
3) without end, never to cease, everlasting
It surely does NOT mean "ages and ages". It means exactly what the lexicon says it means. Eternal.
Unless you are a greek scholar and can clearly demonstrate that Strong's is wrong, you have no point.
Seems to me the prophesy here is literal as to the valley of Hinnon, not the lake of fire, where the devil and his angels will be in eternal torment.Even if we set the Lake of Fire aside, Jesus said the wicked will be cast into Gehenna, Jeremiah prophesied that a day would come when Gehenna would once again made holy to the Lord. This should be proof positive (in addition to all of the other passages) that aionios doesn't mean eternal. The Scriptures refute the idea that aionios means eternal, that idea comes from men.
38 Behold, the days come, saith the LORD, that the city shall be built to the LORD from the tower of Hananeel unto the gate of the corner.
39 And the measuring line shall yet go forth over against it upon the hill Gareb, and shall compass about to Goath.
40 And the whole valley of the dead bodies, and of the ashes, and all the fields unto the brook of Kidron, unto the corner of the horse gate toward the east, shall be holy unto the LORD; it shall not be plucked up, nor thrown down any more for ever. (Jer 31:38-40 KJV)