A prophesy can be a message, specifically "a DIVINE message FROM GOD." A "prophet" can mean a person who is in touch with the divine, and is a channel through messages from the divine reach humanity.
I think that's what is meant here.
A prophecy MAY contain predictions about the future--often large-scale apocalyptic visions of the end of the world, as in the Book of Daniel (Old Testament) or Revelations (New Testament), so "prophecy" has also come to mean "prediction."