“The religion of the Bible thus announces itself, not as the product of men’s search after God, if haply they may feel after Him and find Him, but as the creation in men of the gracious God, forming a people for Himself, that they may show forth His praise. In other words, the religion of the Bible presents itself as distinctively a revealed religion. Or rather, to speak more exactly, it announces itself as the revealed religion, as the only revealed religion; and sets itself as such over against all other religions, which are represented as all products, in a sense in which it is not, of the art and device of man.” (B.B. Warfield)
For more on the subject, visit the Biblical Theology page.