Be serious! Be alert! Your adversary the Devil is prowling around like a roaring lion, looking for anyone he can devour. Resist him and be firm in the faith, knowing that the same sufferings are being experienced by your fellow believers throughout the world.
1 Peter 5:8-9 HCSB
As Peter wrote to the churches, we must always be on the guard against the devil because he is waiting to attack at his first chance. Be prepared and equip yourself with the Armour of God!