The High Priest's Clothes

In Exodus chapter 28 verses 33 to 38, we read the following description of the garments of the high priest. On its hem you shall make pomegranates of blue and purple and scarlet yarns, around its hem with bells of gold between them,. A golden bell and a pomegranate, a golden bell and an engraved plate reading holy to the Lord would now be found even on the horses in the city. Given the way that horses are used as symbols of the Lord's army and people elsewhere in Zechariah, perhaps we should see the horses here as possibly being symbols of the people of the Lord from all nations.