The “jailing” of Satan is described in these words.
Revelation 20:1-3 (NKJ)
1 Then I saw an angel coming down from heaven, having the key to the bottomless pit and a great chain in his hand.
2 He laid hold of the dragon, that serpent of old, who is the Devil and Satan, and bound him for a thousand years;
3 and he cast him into the bottomless pit, and shut him up, and set a seal on him, so that he should deceive the nations no more till the thousand years were finished. But after these things he must be released for a little while.
When Satan is released, at the end of the 1000 years, there will be one final battle, between evil and good. Evil will be destroyed forever and all those that have been judged evil will be cast into the lake of fire, forever separated from God, eternally.
True peace will occur, during the Millennium, because the restored Jewish nation will finally be reconciled with their Creator and Savior, the Messiah, the Prince of Peace. The evil influence of Satan and the temptations of the flesh will be bound. The healing of the nation shall take place, in one day. That healing will be made possible because the Messiah, the Redeemer, the Intercessor, will have been made manifest to Israel and prophecy will be both understood and fulfilled.
Isaiah 53:1-12 (NKJ)
1 Who has believed our report? And to whom has the arm of the LORD been revealed?
2 For He shall grow up before Him as a tender plant, and as a root out of dry ground. He has no form or comeliness; and when we see Him, there is no beauty that we should desire Him.
3 He is despised and rejected by men, a Man of sorrows and acquainted with grief. And we hid, as it were, our faces from Him; He was despised, and we did not esteem Him.
4 Surely He has borne our griefs and carried our sorrows; yet we esteemed Him stricken, smitten by God, and afflicted.
5 But He was wounded for our transgressions, He was bruised for our iniquities; the chastisement for our peace was upon Him, and by His stripes we are healed.
6 All we like sheep have gone astray; we have turned, every one, to his own way; and the LORD has laid on Him the iniquity of us all.
7 He was oppressed and He was afflicted, yet He opened not His mouth; He was led as a lamb to the slaughter, and as a sheep before its shearers is silent, so He opened not His mouth.
8 He was taken from prison and from judgment, and who will declare His generation? For He was cut off from the land of the living; for the transgressions of My people He was stricken.
9 And they made His grave with the wicked– but with the rich at His death, because He had done no violence, nor was any deceit in His mouth.
10 Yet it pleased the LORD to bruise Him; He has put Him to grief. When You make His soul an offering for sin, He shall see His seed, He shall prolong His days, and the pleasure of the LORD shall prosper in His hand.
11 He shall see the labor of His soul, and be satisfied. By His knowledge My righteous Servant shall justify many, for He shall bear their iniquities.
12 Therefore I will divide Him a portion with the great, and He shall divide the spoil with the strong, because He poured out His soul unto death, and He was numbered with the transgressors, and He bore the sin of many, and made intercession for the transgressors.
Read verses 10-12 very carefully. It pleased the LORD because God knew that this was the only sacrifice that could heal His people. The love that God has for His chosen people could not have been expressed in a more complete way.
Consider this. If your son had to die, in order to cover the sins of all mankind, and in doing so, became the redeemer of all those of faith, saved by the Grace of God, would that be pleasing to you? It pleased God to bruise our Messiah, His Son, because in doing so, all of His children now have a Redeemer, a Mediator, a Counselor, One who can bring God’s children into His perfect Presence.
Now, at the end of the age, God has told us what a marvelous miracle He will provide. One of the primary reasons that there will be a peaceful, wonderful millennium is that Satan is bound. The great deceiver, the tempter, the accuser, is bound. The other is that the nation of Israel will receive the New Covenant. Christ will reign in the hearts of Israel’s people!
Then, following the 1000 years of peace, evil will be eternally and finally judged. New Jerusalem will descend from the heavens and a new heaven and a new earth will begin, without end, and all whose names are written in the Book of Life will be there. Satan, and all of the enemies of God, will have been removed, forever.
New Jerusalem, our eternal heaven, will never see darkness, there will be no temple there and no more sea. There will be a “pure” language, we will all have a new name and we will reign eternally with the Father and the Son. Your status there will depend upon what you did with the amount of Light God gave you here. We will all joyfully “serve,” but it appears that we will serve in ways that differ from one another. Jesus will be called by a new name. We will be neither young nor old nor male and female. This will be a perfect, eternal place, without sin. Worship and joy will prevail.