For the testimony of Jesus is the Spirit of prophecy. The Spirit of prophecy is still the testimony of Jesus today. It is necessary that the gift of prophecy function in order that knowledge and understanding be enabled to increase in the body. There appears to be an idea today that everything that is prophesied must be found in the written Word. But that same Word tells us that if everything Jesus said and taught were to be written, the world itself would be unable to contain the books.
Prophetic utterance is an extension of the written Word.
It is also the word of the Lord, IF it is true prophecy. It can be judged by the Word in the sense that it will never be contrary to anything in it. This is a sobering thought, and should cause us to us exercise great care in regard to the use of the term prophecy. It is very thin ice we are treading on here. God is merciful.