There is another weapon the Devil uses, and that is the weapon of accusation.
To be effective, an accuser needs an opportunity to make an accusation. He needs something he can try to pin on the person being accused.
Paul urges us , Do not give the Devil an opportunity to accuse us ( Ephesians 4:27 ). Paul chose the right name for the enemy here, because the devil is the accuser or slanderer who seeks to tie us up with guilt.
When we give the Devil an opportunity, an opening in this case in Ephesians :4, by letting our anger get out of control, then at that point he has a legal right to accuse us before God. The Devil has been in God’s court before. He knows what kind of judge God is and how his court works. He knows that God is so righteous and so Holy He has to deal with sin. So when we sin we give the Devil the opportunity he needs to go into God’s courtroom and lay a charge against us. Satan cannot touch our salvation. But he is always ready to take advantage of our sin to ruin our lives. This is why the Bible urges us to deal decisively with sin ( 1John 1:9 ).
If we don’t, the Devil turns that opportunity for accusation into a fortress. And when we allow him to build a fortress, we are in trouble because the Devil now has undue influence over us. Don’t let him bring you under his accusing control.
The Bible gives us three powerful weapons for defeating our adversary Satan, the devil who accuses us day and night. The Apostle John was looking ahead to that future day when Satan will be defeated once and for all, so the context of Revelations 12:11) is prophetic. But the weapons these tribulation saints used to defeat the Devil are the same ones we can use today.
This great verse says,