They Left out an R
The Pope dies and, naturally, goes to heaven. He's met by the reception
committee, and after a whirlwind tour is told that he can enjoy any of the
myriad recreations available. He decides that he wants to read all
of the ancient original text of the Holy Scriptures, and spends the next eon
or so learning the languages. After becoming a linguistic master, he
sits down in the library and begins to pour over every version of the Bible,
working back from the most recent "Easy reading" to the original
script.
All of a sudden here is a scream in the library. The angels come running to
him, only to find the Pope huddled in a chair, crying to himself, and
muttering, "An 'R'! They left out the 'R'."
God takes him aside, offering comfort and asks him what the problem
is. After collecting his wits, the Pope sobs again, "It's the
letter 'R'. The word was supposed to be CELEBRATE!"