We are in a real way surrounded with evil.  However God is our protector and empowers us to aggressively; with prayer and the Word of God chase and keep them away. We have the honor and responsibility to help others that are under attack. 

Beware of Circling Wolves

Wolves howl and draw close to attack and to kill;
Their empty belly desires to be filled.
They separate the lame and confuse the mind,
So unknowingly they cross into the enemy’s line.
The wolves circle and then rush in at great speed,
To attack and kill to upon them feed.
This story shows just as nature warns.
If not careful the unsuspecting one will be harmed.
The enemy is cunning; demons are everywhere.
The lost and lame about you are in need of your prayers.
When mixed-up, when tired and sick; unable to defend;
They need someone to reach out and in prayer fight for them.
Evil prowls about, seeking to destroy whomever they can;
This is why God needs helping hands.
Go into the byways and share what Jesus did to set them free.
Warn them how evil devours all who will not believe.

John 10:10-11
The thief cometh not, but for to steal, and to kill, and to destroy: I am come that they might have life, and that they might have it more abundantly.  I am the good shepherd: the good shepherd giveth his life for the sheep.