Adam Clarke on Zechariah 3:8

O Joshua - thou, and thy fellows - Thy countrymen, who have now returned from your captivity, in a very wonderful manner. אנשי מופת anshey mopheth, figurative men, men whose office and ministration prefigured the Lord Jesus Christ; and therefore it is immediately added, "I will bring forth my servant The Branch." Abp. Newcome thinks this means Zerubbabel, so called because he was the grandson of Jehoiakim, or Jeconiah, king of Judah, Mat 1:12, and heir to the throne of Judah. The Chaldee has, "My servant the Messiah." See the note on Isa 4:2 (note). I think the word cannot apply to Zerubbabel, except as a type of Christ; in that sense it may be understood of him. See Zac 6:11, Zac 6:12.