We Will Have Revelations To Know Our Forefathers

St George Utah Temple - Photo From LDS Media Library

"In the Millennium, when the Kingdom of God is established on the earth in power, glory and perfection, and the reign of wickedness that has so long prevailed is subdued, the Saints of God will have the privilege of building their temples, and of entering into them, becoming, as it were, pillars in the temples of God [see Revelation 3:12], and they will officiate for their dead. Then we will see our friends come up, and perhaps some that we have been acquainted with here. … And we will have revelations to know our forefathers clear back to Father Adam and Mother Eve, and we will enter into the temples of God and officiate for them. Then [children] will be sealed to [parents] until the chain is made perfect back to Adam, so that there will be a perfect chain of Priesthood from Adam to the winding-up scene. This will be the work of the Latter-day Saints in the Millennium."

- Brigham Young, Discourses of Brigham Young, selected by John A. Widtsoe, 1941, p 116.