Hitler. The Point of No Return. The Infinite Consequence.

I will speak of a very serious matter.
I hope you are prepared.

Have you heard people say that God forgives?
They are right, but there is a fault that will never be forgiven.
Have you heard about her too?

In the Bible there is a warning with infinite consequence, that warning is the offense to the Holy Spirit. It is an infinite consequence because God will not forgive you after crossing that line. That is the point of no return.
So the best question is:
How do you offend the Holy Spirit?