See "Revelation," by A. C. Gaebelein, in explanation of this interesting prophecy. The term, the conversion of the world, is nowhere used in the Bible.

Cain in rejecting God's way of approach by sacrifice and bringing instead his own works was the first Unitarian and Christian Scientist. See "The Present Age" in this volume. "Exposition of Revelation," by A. C. Gaebelein, unfolds this more fully. See chapter "The Redemption of the Purchased Possession." The Roman Empire in its final form of ten kingdoms.