Just for fun, imagine that heaven is huge skyscraper and the Archangel Gabriel is the elevator-operator. As each new entrant arrives in heaven, Gabriel asks for their religious affiliation, and each is directed by Peter to the appropriate floor:

Gabriel asks, "Religious affiliation?"
"Methodist."
Peter looks down his list, and says, "I'll let you off at floor 24, but everyone please be very quiet as we pass floor 13."
Another arrives at the elevator. "Religious affiliation?"
"Southern Baptist."
"We'll go to floor 66, but everyone please be very quiet as we pass floor 13."
A third arrives. "Religious affiliation?"
"Reformed Jew."
"Get off at floor 10, but everyone please be very quiet as we pass floor 13."
One of the passengers finally asks, "I can understand there being different floors for different religions, but why must we be quiet as we pass the 13th floor?"
"Well, the Jehovah's Witnesses are on that floor, and the loving All-Being has mandated this rule out of sheer kindness" explains the Archangel. "You see, only a small group of them imagined that they would be here in the first place - and they think they're the only ones here."