“I Will Prune It, And… Nourish It”
Joseph F. McConkie, Robert L. Millet
The “pruning” is the cutting back of the extraneous- the chastening of his chosen, the humbling of his covenant people-that they might be prepared for the spiritual nourishment to follow (cf. John 15:2).
Doctrinal Commentary on the Book of Mormon, Vol. 2
References
Jacob 5:4–5