"Our Father’s plan is about families. Several of our most poignant scriptures use the concept of the tree with its roots and branches as an analogy.
"In the closing chapter of the Old Testament, Malachi, in describing the Second Coming of the Savior, vividly uses this analogy. Speaking of the proud and wicked, he notes that they shall be burned as stubble and 'that it shall leave them neither root nor branch.' Malachi closes this chapter with the Lord’s reassuring promise:
“Behold, I will send you Elijah the prophet before the coming of the great and dreadful day of the Lord: And he shall turn the heart of the fathers to the children, and the heart of the children to their fathers, lest I come and smite the earth with a curse.”
"The essential doctrine of uniting families came forth line upon line and precept upon precept. Vicarious ordinances are at the heart of welding together eternal families, connecting roots to branches."
- Elder Quentin L. Cook, "Roots and Branches", LDS General Conference, April 2014.