Treasury of Scripture Knowledge

Summary

And the devil that deceived them was cast into the lake of fire and brimstone, where the beast and the false prophet are, and shall be tormented day and night for ever and ever.

Bible References

The lake

Revelation 20:14
Then death and the unseen place of departed spirits were thrown into the lake of fire [i.e., after their spirits were reunited with some kind of a body]. This lake of fire is the second death.
Revelation 19:20
But the beast was captured, along with the false prophet [See 16:13], who performed [supernatural] signs in his presence. [He had performed these signs] to deceive those who had received the mark of the beast and those who worshiped his statue. [See 13:15-16]. The beast and the false prophet were both thrown alive into the lake of fire that burns with sulphur.

Tormented

Revelation 14:10
he will also [have to] drink the wine of God's anger, as an undiluted mixture in the cup of His anger. And he will be tortured with burning sulphur in the presence of the holy angels and in the presence of the Lamb.
Matthew 25:41
Then He [i.e., the King] will say to those at His left side, 'Go away from me, you who are cursed [by God], into the never ending fire which is prepared for the devil and his angels.