“Must Speedily Come”
Joseph F. McConkie, Robert L. Millet
Like the phrase “I come quickly” (Revelation 22:20; D&C 33:18; D&C 35:27; D&C 49:28), the phrase “must speedily come” apparently refers to the suddenness of the judgments of God rather than to their immediacy.
Doctrinal Commentary on the Book of Mormon, Vol. 2
References
Jacob 2:12–14