Zechariah 3:5

And I said, let them set a fair mitre on his head - This seems to have been purposely omitted, in order to leave something, and that, the completion of all, to be done at the intercession of the prophet. The glory and complement of the high priest’s sacrificial attire was the mitre with the “holy crown upon it and the plate of prate gold, on which was graven, Holiness to the Lord” Exodus 28:36; Exodus 29:6; which was to “be upon” the high priest’s “forehead, that he may bear the iniquity of the holy things which the children of Israel shall hallow in all their holy gifts; which was always to be upon his forehead, that they may be accepted before the Lord.” The renewed gift of this was reserved for the intercession of man co-working with God.

And the angel of the Lord standing by - Seeing that all was done aright, and, now that the acquittal was complete, standing to give the charge.