I find that when I compare what you said with Scripture and with my observations and experience, your statement is thoroughly wrong and UNBiblical.
You also ought to know that the common understanding of prophecy as future telling is
CERTAINLY ONE
of the VERY VALID AND VERY BIBLICAL MEANINGS OF THE TERM. To deny that is to deny basic scholarship and basic dictionary meanings which have been true from the original languages to our time.
It is a deceptive cop-out, rationalization, plain untruth etc to assert that the only meaning of prophecy, to prophecy or to be aprophet is FORTH TELLING of The Gospel.