In Together for GOOD, Jay Adams gives readers a fictionalized conversation between Greg Cunninghamm, a pastor, and Bob Rawlston, an unbelieving man wrestling with the Book of John. One of the Bob's struggles is with John 14:6 where Jesus says, “I am the way and the truth and the life. No one comes to the Father except through me." It is the exclusive claim of the last sentence that bothers Bob.
"I always thought that whatever religion you accept, so long as you are sincere, it will ultimately lead you to God. But Jesus doesn't provide much room for anybody except those who believe in Him?"
The Pastor has two responses that are worth passing on:
"If all religions lead to God, surely He wouldn't be much of a God since He'd be a contraction in Himself. You see, since every religion contradicts every other, and if all of their ways lead to God, then God Himself must be confused. You wouldn't want to believe in a God who says one thing today and the opposite tomorrow, one thing to one person and the opposite to another, I'm sure?"
"..... And think of this: if people can be saved from their sins some other way than by believing the Gospel, then Jesus' crucifixion was not only a senseless tragedy, but sending Him to die was a stupid, brutal act on God's part. No matter how you squeeze it, when you think rationally, you have to come to the conclusion that if there's one God, there can only be one way."