Захария 3:5

At this moment the prophet feels compelled to utter the prayer that they may also put a clean mitre upon Joshua's head, which prayer is immediately granted. The prayer appears at first to be superfluous, inasmuch as the mitre would certainly not be forgotten when the dirty clothes were taken away and the festal dress was put on. Nevertheless, the fact that it is granted shows that it was not superfluous. The meaning of the prayer was hardly that the high priest might be newly attired from head to foot, as Hengstenberg supposes, but is rather connected with the significance of the mitre. Tsânı̄ph is not a turban, such as might be worn by anybody (Koehler), but the headdress of princely persons and kings (Job 29:14; Isa 62:3), and is synonymous with mitsnepheth, the technical word for the tiara prescribed for the high priest in the law (Ex. and Lev.), as we may see from Eze 21:31, where the regal diadem, which is called tsânı̄ph in Isa 62:3, is spoken of under the name of mitsnepheth. The turban of the high priest was that portion of his dress in which he carried his office, so to speak, upon his forehead; and the clean turban was the substratum for the golden plate that was fastened upon it, and by which he was described as holy to the Lord, and called to bear the guilt of the children of Israel (Exo 28:38). The prayer for a clean mitre to be put upon his head, may therefore be accounted for from the wish that Joshua should not only be splendidly decorated, but should be shown to be holy, and qualified to accomplish the expiation of the people. Purity, as the earthly type of holiness, forms the foundation for glory. In the actual performance of the matter, therefore, the putting on of the clean mitre is mentioned first, and then the clothing with festal robes. This too…

The vision in the foregoing chapter gave assurances of the re-establishing of the civil interests of the Jewish nation, the promises of which terminated in Christ. Now the vision in this chapter concerns their church-state, and their ecclesiastical interests, and assures them that they shall be put into a good posture again; and the promises of this also have an eye to Christ, who is not only our prince, but the high priest of our profession, of whom Joshua was a type. Here is, I. A vision relating to Joshua, as the representative of the church in his time, representing the disadvantages he laboured under, and the people in him, with the redress of the grievances of both. 1. He is accused by Satan, but is brought off by Christ (Zac 3:1, Zac 3:2). 2. He appears in filthy garments, but has them changed (Zac 3:3-5). 3. He is assured of being established in his office if he conduct himself well (Zac 3:6, Zac 3:7). II. A sermon relating to Christ, who is here called "The branch," who should be endued with all perfections for his undertaking, should be carried triumphantly through it, and by whom we should have pardon and peace (Zac 3:8-10).

3:5 The high priest’s turban bore a gold medallion inscribed with the words “Holy to the Lord” (Exod 28:36-38; see also study note on Zech 14:20). The clean turban was placed on Jeshua’s head as an act of ordination that reinstated him as priest and mediator for the people.