Exodus 28:36

28:36 “You are to make a plate of pure gold and engrave on it the way a seal is engraved: “Holiness to the Lord.”

Exodus 39:6

39:6 They set the onyx stones in gold filigree settings, engraved as with the engravings of a seal with the names of the sons of Israel.

Exodus 39:30

39:30 They made a plate, the holy diadem, of pure gold and wrote on it an inscription, as on the engravings of a seal, “Holiness to the Lord.”