And I said, Let them set a fair mitre upon his head. So they set a fair mitre upon his head, and clothed him with garments. And the angel of the LORD stood by. A fair mitre upon his head - To signify that he had renewed to him the office of the high priesthood, which had been defiled and profaned before. The mitre was the bonnet which the high priest put on his head when he entered into the sanctuary, Exodus 28:4, etc.
Clothed him with garments - Referring to the vestments of the high priest. The true high priest, who is over the house of God, will establish his office among them, when they shall acknowledge him as their Messiah, and seek redemption in the blood of the sacrifice which he has offered for their sins; and not for theirs only, but for the sins of the whole world.