Well, Jesus is what seperates this whole divide. Jesus is evidence of God. Everyone wants evidence, empirical evidence - Jesus is that. He walked around this earth 2000 years ago and did everything (and more) the Bible said he did.
But my brother has even better than that. He has a conversion story to rival any Christian, has seen miracles performed in front of his eyes, knows he has the *Truth*, and has lived in community with his fellow believers. But not only that, he actually met God incarnate - worshipped and served Him in His own temples and ashrams. He knelt at His feet, received Darshan from him in person, and from afar from around the world. Does your Truth trump my brother's Truth?