Jesus said, Beware of false prophets, who come to you in sheep's
clothing, but inwardly are ravenous wolves. (Matt 7:15)
Brethren, do not reject all prophets because there are so many false
prophets; but instead learn how to recognize them both.
The testimony of Jesus Christ is the spirit of all prophecy.
(Rev.19:10)
A true prophet than is not a fortune teller (one who foresees future
events); but a true prophet centers his teaching and his life on the
testimony of Jesus (the words that Jesus spake and sealed by His blood
on the cross of Calvary).
Old testament prophets were prophets because they foretold the
coming of Jesus the Messiah.
New Testament prophets do magnify the words of Jesus the Christ.
The testimony of Jesus is the spirit of all true prophets.