“And behold, it shall come to pass that my servants shall be sent forth to the east and to the west, to the north and to the south.
“And even now, let him that goeth to the east teach them that shall be converted to flee to the west, and this in consequence of that which is coming on the earth, and of secret combinations.”
Original Source
Doctrine and Covenants 42:63-64
Revelation given through Joseph Smith the Prophet, at Kirtland, Ohio, February 9 and 23, 1831.
https://www.lds.org/scriptures/dc-testament/dc/42?lang=eng
Accessed 15/2/2016