The Church in America cannot see (in part or in full) the “ripeness of the fields” if we are solely or primarily calling for the militaristic defeat of ISIS. We will see enemies and not fellow images of God who desperately need the gospel as well.
God, indeed, knows our desires without an utterance from the lips. When one speaks of them, however, an “unveiling” occurs. One goes from being a “thing” [known by observation] to a “person” [known by self disclosure].