In Matthew, chapter 24, we learn of “famines, and pestilences, and earthquakes. …” (Matt. 24:7.) The Lord declared that these and other calamities shall occur. These particular prophecies seem not to be conditional. The Lord, with his foreknowledge, knows that they will happen. Some will come about through man’s manipulations; others through the forces of nature and nature’s God, but that they will come seems certain. Prophecy is but history in reverse—a divine disclosure of future events.
Yet, through all of this, the Lord Jesus Christ has said: “… if ye are prepared ye shall not fear.” (D&C 38:30.) – Ezra Taft Benson, “Prepare Ye,” Ensign (CR) November 1973