What it ISN’T
Murder (Moses), Adultery (David), etc. Even denying Christ (Peter)! There are examples of each of these among people of faith.
What it IS
A Persistent and Stubborn Refusal to Believe in God in the face of Overwhelming Evidence presented by the Holy Spirit.
The Problem: Grapevine Theology
Tradition can be an acceptable influence on our faith, but Scripture must come first.