Thus this holy calling being prepared
from the foundation of the world
for such as would not harden their hearts,
being in and through the atonement of
the Only Begotten Son, who was prepared—
This high priesthood being after the order of his Son,
being without beginning of days or end of years,
being prepared from eternity to all eternity—
Thus they become high priests forever,
after the order of the Son,
the Only Begotten of the Father,
who is without beginning of days or end of years,
who is full of grace, equity, and truth.
(Alma 13:5, 7 & 9)