I hear so many people talk about Satan and the demons like they are immortal. They are not immortal, they are mortal like us. They will die someday. Read these scriptures and you will see what I mean.
Romans 16:20, Hebrews 2:14, Revelation 20:10-14.
Satan tries to convince people that he has more power and authority then he really does. He tries to get people to believe he is on the same level as God. It makes it easier for people to give up because they think there is no point in trying to resist him. He has already been thrown out of Heaven. He knows he has very little time left.
I have realized that people are confusing the abyss which is temporary with the lake of fire. When Satan is thrown into the abyss he will be released again, but that will not be the case when he is thrown into the lake of fire. Here are some scriptures that should help you understand the abyss better. (Luke 8:31,Psalms 88:6-8, Revelation 20:1-3)
There are people who will join Satan in the lake of fire. (Revelation 21:8). Sodom and Gomorrah suffered the judicial punishment of everlasting fire. We do not see the fire still burning. If you throw something into the fire and burn it, there is nothing but ashes left. The destruction of that item becomes permanent you can’t put it back the way it was. That will be the case for those who choose not to obey God. (2 Thessalonians 1:7-9)