Exodus 39:21
They tied the rings of the breastpiece to the rings of the ephod with a cord of blue thread, so that the breastpiece wouldn't come loose from the ephod, as the Lord had ordered Moses to do.They tied the rings of the breastpiece to the rings of the ephod with a cord of blue thread, so that the breastpiece wouldn't come loose from the ephod, as the Lord had ordered Moses to do.