God appearing to non-believers I just want to know what bible verse is it that talks about God appearing to a group of non-believers and even after seeing God they still didn't believe.
Here is a text - Rom 1:18-25 that describes people who know God but refuse to obey him and thus become depraved.  V21, 22 summarises this:


  For even though they knew God, they did not honor Him as God or give
  thanks, but they became futile in their speculations, and their
  foolish heart was darkened. 22Professing to be wise, they became
  fools


Here are three more (radical) suggestions that answer the question but may not satisfy the question(!?!)


Judas Iscariot met and knew Jesus (while on earth but who was still God, John 1:18, 5:17, 18, 20:28, etc) but later, betrayed Jesus and then went out and hanged himself.
The rich young ruler, Matt 18:18-25, who went away very sad because he loved his riches more than Jesus.
There is also the instance in Rev 6:15-17 where the wicked see Jesus (the "Lamb" on the throne) and ask to be destroyed because they do not want to be in His presence.


In all these cases, the people know and recognise God but refuse to have Him as their God.