True believers must always be prepared for the counterattacks of darkness

A. Counterattack of darkness on the Light.
1. Why does God allow this?
2. False prophets in the OT, false Christs, apostles and teachers in NT
a. Bring error and damnable heresies
b. Disguised as truth
c. Brings destruction to teacher and follower alike
B. Consequences of darkness
1. Find many followers
2. Seeks to discredit the truth
C. Covetousness of darkness