Do you wonder why the don't?
Purgatory pulls the teeth of the bumble in the eyes of the unknowing - they can't see the bumble just put blackout on his teeth after sharpening them...
No, I'm quite clear on why people don't listen to the word of God - whether I speak it or any of my Christian brothers speaks it. It is a stumbling block and a Rock (petra) of offense to those who have their own view of things or have accepted someone's philosophy. Those who follow philosophy prefer it to the Word of God and defend it more staunchly than the word of God.