The blue robe (Ex 39:22-39:26)

“He also made the robe of the ephod woven all of blue yarn.  The opening of the robe in the middle of it was like the opening in a coat of mail, with a binding around the opening, so that it might not be torn.  On the lower hem of the robe, they made pomegranates of blue, purple, and crimson yarns, and of fine twisted linen. They also made bells of pure gold.  They put the bells between the pomegranates on the lower hem of the robe all around, between the pomegranates.  There was a bell and a pomegranate, a bell and a pomegranate all around on the lower hem of the robe for ministering, just as Yahweh had commanded Moses.”

Once again they are doing what Yahweh had commanded Moses in chapter 28.  This robe is only blue but with a opening in the middle.    The lower hem of the robe alternated between a gold bell and a colorful pomegranate all around the hem.  You obviously could tell when someone wearing this robe was coming.                        

The blue robe (Ex 28:31-28:35)

“You shall make the robe of the ephod all of blue.  It shall have an opening for the head in the middle of it, with a woven binding around the opening, like the opening in a coat of mail, so that it may not be torn.  On its lower hem you shall make pomegranates of blue, purple, and crimson yarns, all around the lower him, with bells of gold between them all around.  There is a golden bell and a pomegranate alternating all around the lower hem of the robe.  Aaron shall wear it when he ministers.  Its sound shall be heard when he goes into the holy place before Yahweh, and when he comes out, so that they may not die.”

The robe of the ephod is to be all blue.  This is worn under the ephod. It shall have an opening for the head in the middle of it, with a woven binding around the opening. T he hem shall have a golden bell and pomegranates of blue, purple, and crimson yarns.  Thus when Aaron was coming or going into the holy place, the bell would sound so that everyone should get out of the way of they would die.