Here begins the third and last division of the Old Testament. A prophet is not necessarily one who predicts, but one who speaks for God, an inspired teacher. Prediction was one form in which the divine seal and sanction were set upon the prophet. The prophetic and historic books are closely related. The Hebrew nation is always the center of both, and other nations are viewed only as related to this central subject and object. [p. 53] HBS 39.2