The curious girdle. Josephus says of the ephod, ζώνῃ περισφίγγεται βάμμασι διαπεποικιλμένῃ χρυσοῦ συνυφασμένου, "it is fastened with a girdle dyed of many hues, with gold interwoven in it." Hence its name, khesheb, which means properly "device" or "cunning work."
Of the ephod. Rather "of its girding"—i.e. "wherewith it (the ephod) was to be girded." Shall be of the same. Compare above, Exodus 25:19. The girdle was to be "of one piece" with the ephod, woven on to it as part of it, not a separate piece attached by sewing.
According to the work thereof. Rather, "of like workmanship with it."