Revelation 16:20

Here, as at Revelation 6:14, the removal of hills tallies with the Iranian belief (shared by later Jewish Christian apocalyptic, cf. Böklen, 131 f.) that mountains as the work of Ahriman would disappear with him (S. B. E. ver. 129), leaving the earth in its ideal state of a smooth plane on which mankind could dwell in unity of speech and intercourse, free from barriers. The collocation of mountain and island (so Revelation 6:14) is possibly a relic of the ancient point of view, for which (i.e., for dwellers in the West) these formed the apparent source of the sun's rising, where his light first became visible.