Definition: Pc18 = "Prophetic Covenant" - a series of revelations given by God to prophets in the Bible that are meant to be understood as prophecies for specific people or times. Definition: A prophecy is an oral or written prediction made by a prophet to someone else about a future event, usually intended to be observed and used as a sign or message from God. Prophets have been given the job of communicating these messages through their words and actions, often under pressure to keep them true to the divine will.