19We also have the prophetic message as something completely reliable, and you will do well to pay attention to it, as to a light shining in a dark place, until the day dawns and the morning star rises in your hearts. 20Above all, you must understand that no prophecy of Scripture came about by the prophet’s own interpretation of things. 21For prophecy never had its origin in the human will, but prophets, though human, spoke from God as they were carried along by the Holy Spirit.