In this sense prophesy is an aspect of God. He likes to reveal Himself-that is one of His Ways-ie a part of His Nature. So when we prophesy it is allowing Him to express Himself which brings Him joy-which is THE point. Prophecy is not first of all for us! It is first of all for Him! Letting Him express Himself brings Him joy.
The Church has shrunk the categories of His Being.
So they want prophets to do it in certain ways which are not necessarily His Ways-prophecy is a question of being-letting Him BE. When we call someone a worship leader or whatever and see them in man made categories we don’t give God the pleasure of reflecting Himself out through us.