Éxodo 28:11

11 De obra de grabador en piedra a modo de grabaduras de sello, harás grabar aquellas dos piedras con los nombres de los hijos de Israel; les harás alrededor engastes de oro.

Éxodo 28:11 Meaning and Commentary

Exodus 28:11

With the work of an engraver in stone
Not in common but precious stones: Moses was not to do this himself, as it could not be supposed he should, but he was to employ an engraver, whose business it was, and one that was capable of doing it in a professional manner:

[like] the engravings of a signet shall thou engrave the two stones
with the names of the children of Israel:
as in signets or seals, by which impressions are made on wax, the letters or figures are cut deep, that they might on the wax stand out; so it seems the letters of the names of the children of Israel were cut in these stones: this shows that engraving on precious stones is very old, and the ancients indeed are said to excel in this art:

thou shalt make them to be set in ouches of gold;
in beazils or sockets, such as precious stones in rings are set in; these with the stones in them served as buttons to fasten together the hinder and fore part of the ephod on the shoulder pieces of it.

Éxodo 28:11 In-Context

9 Y tomarás dos piedras de ónice, y grabarás en ellas los nombres de los hijos de Israel:

10 Los seis nombres en una piedra, y los otros seis nombres en la otra piedra, conforme al nacimiento de ellos.

11 De obra de grabador en piedra a modo de grabaduras de sello, harás grabar aquellas dos piedras con los nombres de los hijos de Israel; les harás alrededor engastes de oro.

12 Y pondrás aquellas dos piedras sobre los hombros del efod, serán piedras de memoria a los hijos de Israel; y Aarón llevará los nombres de ellos delante del SEÑOR en sus dos hombros por memoria.

13 Y harás los engastes de oro,