Enoch saw it before Moses was born.

In Moses 7:47, standing inside the Great King’s own weeping at the wickedness of the antediluvian world, Enoch looked forward and saw the Lamb slain from the foundation of the world.

The language is deliberate: not slain at the meridian of time only, but slain from the foundation of the world—the atonement retroactive, its covenant power reaching backward to cover every generation that ever lived under the Great King’s promises.

The Passover lamb of Exodus 12 is the event in history that most precisely names what Enoch saw.

A lamb without blemish.

Blood on the doorposts and lintel.

The Great King passing through to strike the firstborn.

And the covenant people under the blood—protected, preserved, delivered—watching through the night for the morning when they would walk out of Egypt as a free people.

Every covenant ceremony that follows in the entire biblical canon is calibrated to this night.

The LDS reader taking the sacrament, renewing temple covenants, and reading the New Testament accounts of the Last Supper is participating in a covenant thread that runs without break from Exodus 12 to the present moment.