Here are some of the most damaging and destructive heresies in Christianity that have managed to sneak their way in and infest the church. I believe firmly that if taken far enough, these dangerously incorrect beliefs can cost someone their salvation.
Why would I say that? Because these doctrines are so far off in left field that they cannot be called scriptural by any stretch of imagination, it may as well be a different religion.
There are many good websites that cover much more than what I will go over here, this is not meant to be an exhaustive compilation, but rather a solid rebuking of the worst false doctrines the Christian world has ever seen, put as simply and concisely as possible.
Come with me, as I show how these doctrines of devils are dangerous to the true message of the gospel of Christ, I don't mince words about it.
1Peter 3:15 "...be ready always to give an answer to every man that asketh you a reason of the hope that is in you..."
Hazards to the Faith
Holy Hebrew Hemaglobin
Judaizers in Christianity
All people are not equal
The problems with Catholicism
Old Testament violence
Oneness doctrine (claiming Jesus is the Father)