The Predictive Principle

Definition. A prophet was essentially God’s spokesman, and his sole mission was to speak the Word of God and only the words which God gave him to speak. God said to Jonah, “Go and preach what I bid thee (Jonah 3:2).
He is not only a FORETELLER (predictive prophecy), but a FORTHTELLER of the Word of God (whether by way of instruction. reproof, correction, judgment, etc)
Prophecy is speaking forth the Word of God. Predictive prophecy is speaking forth the Word of God which has to do with the future.
It is not always unusual or spectacular, but it is always authoritative.