Revelation 20:7-11

When the thousand years are over,
Satan will be released from his prison
and will go out to deceive the nations
in the four corners of the earth -
Gog and Magog -
to gather them for battle.
In number they are like the sand on the seashore.
They marched across the breadth of the earth
and surrounded the camp of God's people,
the city He loves.
But fire came down from heaven
and devoured them.
And the devil, who deceived them,
was thrown into the lake of burning sulfur,
where the beast and the false prophet had been thrown.
They will be tormented day and night
for ever and ever.

(Revelation 20:7-11) NIV