Sometimes the interpretation error is on the part of the recipient, and not the prophet. God can say that you will have a son, and his name shall be David. To a pregnant woman, that is obviously talking about the baby she is carrying. However, God might be saying this about the next child, or even the one after that. Be sure you avoid reading things into a prophecy that God hasn t said.
All prophecy requires some action on the recipient s part.
Even if the prophecy does not contain exact instructions, there will still be an implied action on the recipient s part. Someone in the leadership of the church should look at the prophecy, along with an understanding of the person s life in order to determine what action God is desiring. Throughout scripture, whenever God gives a promise, it requires certain actions. If we do what God says, then He will bless us in a certain way. God hasn t changed.