the Ephod » For the high priest » Shoulders of, joined by onyx stones engraved with names of the twelve tribes of israel
It must have two shoulder pieces attached to its two edges so that it can be joined together.
"Take two onyx stones and engrave on them the names of Israel's sons: six of their names on the first stone and the remaining six names on the second stone, in the order of their birth. Engrave the two stones with the names of Israel's sons as a gem cutter engraves a seal. Mount them, surrounded with gold filigree settings. read more.
Fasten both stones on the shoulder pieces of the ephod as memorial stones for the Israelites. Aaron will carry their names on his two shoulders before the Lord as a reminder.
They made shoulder pieces for attaching it; it was joined together at its two edges.
Then they mounted the onyx stones surrounded with gold filigree settings, engraved with the names of Israel's sons as a gem cutter engraves a seal. He fastened them on the shoulder pieces of the ephod as memorial stones for the Israelites, just as the Lord had commanded Moses.