28 And they shall bind the breast-plate by its rings to the rings of the ephod with a lace of blue, that it may be above the curious girdle of the ephod, and that the breast-plate be not loosed from the ephod.
Exodus 28:28 Cross References - Webster
Exodus 28:31
31 And thou shalt make the robe of the ephod all of blue.
Exodus 28:37
37 And thou shalt put it on a blue lace, that it may be upon the miter; upon the front of the miter it shall be.
Exodus 39:30-31
Numbers 15:38
38 Speak to the children of Israel, and bid them that they make them fringes on the borders of their garments throughout their generations, and that they put upon the fringe of the borders a ribin of blue: