John 9:40 Some of the Pharisees who were with Him heard these things and asked Him, “We aren’t blind too, are we?”
41 “If you were blind,” Jesus told them, “you wouldn’t have sin. But now that you say, ‘We see’—your sin remains.
Spiritual blindness is very dangerous. In most cases they think they can see and are heading for an eternal fall. It’s a terrible blindness when mortal men and woman are not ashamed to oppose a Holy God! 
So many people who consider themselves good Christians or Catholics are giving moral ascent to abominable sins that offend a Holy God. They are walking with an invisible “white cane” and are treading near the pit of eternal destruction! 

Repent! Ask God to open your eyes! Ask him to remove any and all blindness He finds right now! If something offends God, it should certainly offend us also!