(Isa. 13:5)
Isaiah seems to be saying here that the Lord’s valiant servants will successfully battle evil during this time period. A modern revelation adds light to this phrase of Isaiah: “Wherefore, I [the Lord] call upon the weak things of the world, those who are unlearned and despised, to thrash the nations by the power of my Spirit; And their arm shall be my arm, and I will be their shield and their buckler; and I will gird up their loins, and they shall fight manfully for me; and their enemies shall be under their feet; and I will let fall the sword in their behalf, and by the fire of mine indignation will I preserve them” (D&C 35:13–14; 133:58–59).
(Donald W. Parry, Jay A. Parry, and Tina M. Peterson, Understanding Isaiah [Salt Lake City: Deseret Book Co., 1998], 132.)