Read Exodus 39:7 Using Other Translations
And he put them on the shoulders of the ephod, that they should be stones for a memorial to the children of Israel; as the LORD commanded Moses.
And he set them on the shoulder pieces of the ephod to be stones of remembrance for the sons of Israel, as the LORD had commanded Moses.
He fastened these stones on the shoulder-pieces of the ephod as a reminder that the priest represents the people of Israel. All this was done just as the LORD had commanded Moses.