All 3 Uses

revelation
in
The Odyssey
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Hear what I have to say,
though my revelations strike the suitors first of all—
a great disaster is rolling like a breaker toward their heads.†
p. 98.6 *
At last, and sore at heart, I told my shipmates,
'Friends ...it's wrong for only one or two
to know the revelations that lovely Circe
made to me alone.†
p. 276.3
His reassurance stirred the queen to her depths
and the godlike seer Theoclymenus added firmly,
"Noble lady, wife of Laertes' son, Odysseus,
Menelaus can have no perfect revelations;
mark my words—I will make you a prophecy,
quite precise, and I'll hold nothing back.†
p. 359.4

Definitions:

(1) (revelation)
something that was previously unknown (and typically surprising); or making such a thing known
(2) (meaning too rare to warrant focus)
As a proper noun, Revelation refers to the last book of the Bible with visionary descriptions of the End of Days. It can also refer to things revealed religiously rather than via logic.