Revelation 20:1-2

Chapter 20 - The dead rise, Satan is judged

1  And I saw an angel come down from heaven, having the key of the bottomless pit and a great chain in his hand.

2  And he laid hold on the dragon, that old serpent, which is the Devil, and Satan, and bound him a thousand years,

Satan is chained by an angel and is bound in the bottomless pit for a thousand years. The bottomless pit is the place where the Beast Antichrist ascended from sometime after the angel with the key opened it. The bottomless pit seems to be a dimension where evil spirits are temporarily imprisoned. At this time, Satan is cast into the bottomless pit and chained so he cannot ascend out of it and deceive the nations during the thousand-year reign of Christ on earth are complete. 

Those in the theology of amillennialism say that Satan has been bound during the entire Church age. They are not properly discerning many scriptures that indicate that Satan has not been bound on earth or even in the lives of those who identify with Christianity. In fact, the scripture calls Satan the god of this age and the prince of the power of the air. It is true that Satan does not have power over any true believer, but only if that person is walking in the Spirit. The sad story we see on earth through the dispensation of grace to the Gentiles since the cross makes it clear that the Devil is not yet bound and does not become bound until this time.

The scriptures indicate that Satan has the power to destroy flesh and to hinder and deceive believers. Peter urges Christians to resist him. Furthermore, scripture says that one is coming from Satan who will have all power and signs and lying wonders. This book tells us that Satan has a throne and a synagogue on earth. By the study of scripture and by looking at world conditions it should be clear to anyone that Satan is not bound in the Church age and is going about as a roaring lion seeking whom he may devour.

1 Peter 5:8  Be sober, be vigilant; because your adversary the devil, as a roaring lion, walketh about, seeking whom he may devour: