Why doesn’t [Satan] just give up and stop bothering us? Perhaps he still expects to win. After all, Satan totally rejects everything about God – including His promises. But Satan also persists because he has one main goal: to block God’s work in any way he can. As long as he is active, people will be deceived into following his way instead of God’s way. Even believers can be diverted from God’s plan for their life and be content with a lukewarm faith that makes little impact on others.
Yes, some day Satan will be defeated.
Thrown into the lake of burning sulfur…[and] tormented day and night forever.
Billy Graham – Wisdom For Each Day