As I understand it the Lake of Fire was created by God for the devil and his fallen angels for eternal punishment. When was it stated, for the first time, that this place will also be the place where all people will go who are not saved? Who first taught this? Did Jesus ever teach this during his time on earth?
Outside of the Book of Revelation, the term “lake of fire” does not appear in the Bible. But in Matt. 18:8 Jesus mentioned sinners being thrown into the eternal fire and in Matt. 25:41 He said those who hadn’t helped His “brothers” during the Great Tribulation would be cast into the eternal fire prepared for the devil and his angels. The lack of any additional explanation tells us the concept of eternal fire for unbelievers was well known to the people of his time.