D and C 109 verse 78 and 79

That thy church may come forth out of the wilderness of darkness, and shine forth fair as the moon, clear as the sun, and terrible as an army with banners; And be adorned as a bride for that day when thou shalt unveil the heavens, and cause the mountains to flow down at thy presence, and the valleys to be exalted, the rough places made smooth; that thy glory may fill the earth;