Rousas John Rushdoony, Systematic Theology, Volume I, Vallecito, California: Ross House Books, 1994, p.192
"John Calvin, in chapter XI of Book I of his Institutes of the Christian Religion, writes on the "Unlawfulness of Ascribing to God a Visible Form. All Idolatry a Defection from the True God." He made clear that the prohibition against idolatry applies to all images of God, whether physical images made by human hands, or intellectual images fashioned by philosophers. Only God can speak with truth and authority concerning Himself, and all men's speculations involve idolatry. In Calvin's words,"