Exodus 29:33

³³ They shall eat those things with which atonement was made, to consecrate and sanctify them: but a stranger shall not eat of it, because they are holy.

Emerald

In Exodus 28:18, this signifies the celestial love of truth. (Arcana Coelestia 9868)

Emerald, purple, broidered-work, fine linen, coral, and agate (Ezekiel 27:16), signify the knowledges of good.