God has His purposes and He assigns them to people to accomplish His will. We look at the role of the prophet's ministry in His purposes, what happens when those purposes are not fulfilled, what becomes those who pick up a purpose not assigned, and what of those who serve the one given the purpose.
At times, God put's "ifs" in some of His prophetic words, and though "ifs" imply some uncertainty, there is no uncertainty to the things God speaks.