The claim of John 14:6-7 becomes problematic when it is used to speak to questions that were never in the Fourth Gospel’s purview. To use these verses in a battle over the relative merits of the world’s religions is to distort their theological heart.
It is a dangerous and destructive anachronism to cite John 14:6-7 as the final arbiter in discussions of the relative merits of different religions’ experiences and understanding of God.
The Fourth Gospel is not concerned with the fate, for example, of Muslims, Hindus, or Buddhists, nor with the superiority or inferiority of Judaism and Christianity as they are configured in the modern world.
These verses are the confessional celebration of a particular faith community, convinced of the truth and life it has received in the incarnation.