Before I became born again I only knew of Jesus, but when I was born again I truly know him and that's when he knows you personally, because you are Saved and are in the Kingdom of God, so one is not of this world as Jesus said, he was not of this world.
So in saying that remember Adam and Eve they were in Gods world in the Garden His Garden ? but due to Sin God kicked them out due to such.
God kicked the Jews out of the Land as well because they were not his people, only they like Nathaniel who serve Jesus Christ were worthy of God regardless. ones Religion is worthless such never Saved anyone, Jesus came and it was him only that Saves. Christ Jesus must come first in your life above all.
So you see only a true Israelite is worthy of God, remember what Jesus said to Nathaniel ? yep Jesus knew he was a true servant of God and that's why Nathaniel knew who he truly was. Jesus said to Nathaniel what he would see ! that's a very powerful message that Jesus mentioned in fact about Nathaniel and not to mention, many so called Christian religions don't like to mention this point of the subject because it's too powerful, they may loose you to Jesus Christ, because they are only concerned with religion, they are only worldly religious and not truly about Salvation in Jesus Christ.
Religion never Saved anyone, only Christ Jesus Saves in fact.
Even the most devout atheist is religious and just because they reject such, does not make it so.
I myself have never met one person in my whole life, who was not religious of some sort of persuade even Communist are highly religious they reek of such as do they who peddle Political Correctness, as they are the most devout dim whits ever that I have come across.