In contrary to what people (even the Commentary!) keep claiming, the introductory quote is not entirely from Revelations 13:18.
Only the bit beginning with "Let him who hath understanding..." is from that passage. The beginning of the quote is from Revelations 12:12.
There are very many English translations of The Bible, and all vary in this particular passage. I remember having read the exact quote somewhere on the web, but I couldn't find the site. A quick search on [a href=\'http://www.bible.com\' target=\'_blank\']http://www.bible.com[/a] showed that the "Revised Standart Edition" comes closest to the quote (though only three translations were given for this passage).
Note that the line "For the devil sends the beast with wrath" is in NO translation I have ever read, and I read that passage in every version I could find. The "Revised Standart Edition" quote reads:
[!--QuoteBegin--][div class=\'quotetop\']QUOTE[/div][div class=\'quotemain\'][!--QuoteEBegin--]Rejoice then, O heaven and you that dwell therein! But woe to you, O earth and sea, for the devil has come down to you in great wrath, because he knows that his time is short![/quote]
The other part of the quote, at the end of Revelations 13:18 is the exact quote that is also spoken in the song.
Therefore:
Woe to you, o earth and sea Rev. 12:12
For the devil sends the beast with wrath Unknown, perhaps a particular translation
Because he knows (that) his time is short Rev. 12:12
Let him who has understanding reckon the number of the beast, for it is a human number, its number is six hundred and sixty-six. Rev. 13:18
This common misconception should be cleared in the commentary.
Gee, I sound like a Bible preacher [!--emo&
--][img src=\'style_emoticons/[#EMO_DIR#]/blink.gif\' border=\'0\' style=\'vertical-align:middle\' alt=\'blink.gif\' /][!--endemo--]