What will be the final doom of Satan and his angels?

Answer

" Then shall He say also unto them on the left hand, Depart from Me, you cursed, into everlasting fire,
prepared for the devil and his angels." Matt. 25:41. "And the day that comes shall burn them up, says the
Lord of hosts, that it shall leave them neither root nor branch." Mal. 4: 1. See Rev. 20: 9.

By what is this cleansing from sin and fitting for God's service accomplished?
Before coming to Sinai, what had Moses taught Israel?
Who is Lord of the Sabbath?
Of what besides a knowledge of God as Creator, is the Sabbath a sign?
Why will many not be prepared for this event?
How long do the other class wait after the first resurrection before they are raised?
21. What scripture shows that Satan is to work with special power and deceptive wonders just before Christ's second coming?

Questions & Answers are from the book Bible Readings for the Home Circle