Christianity has fought a two-front war from the beginning: Persecutors on the outside and false teachers on the inside. Things haven’t changed, so we need to be on guard for both.
I think the bigger enemy is inside.Thank you for this great overview of two kinds of enemies, eMatters.
I agree with your reasoning completely. Atheists are tough, but it becomes very sad and disturbing when communicating with those who claim Jesus' name for salvation, but do not follow what His Word says.