Spiritual Blindness

Some people, who are quite religious, are spiritually blind. Others, who have never been in church, are often more receptive - and responsive to God's messages. So does religion have the potential to blind us and deafen us to God's voice?

The only way to earn salvation is to be perfect and without sin - which of course is impossible for human beings. So it would seem that the most religious people would be looking - and listening much more intently than they do.