Take silver and gold, make an ornate crown, and set it on the head of the high priest, Joshua son of Jehozadak. And you are to tell him that this is what the LORD of Hosts says: 'Here is a man whose name is the Branch, and He will branch out from His place and build the temple of the LORD. Yes, He will build the temple of the LORD; He will be clothed in splendor and will sit on His throne and rule. And He will be a priest on His throne, and there will be peaceful counsel between the two.' The crown will reside in the temple of the LORD as a memorial to Helem, Tobijah, Jedaiah, and the gracious son of Zephaniah.
Behold, the days are coming, declares the LORD, when I will fulfill the gracious promise that I have spoken to the house of Israel and the house of Judah. In those days and at that time I will cause to sprout for David a righteous Branch, and He will administer justice and righteousness in the land. In those days Judah will be saved, and Jerusalem will dwell securely, and this is the name by which it will be called: The LORD Our Righteousness. For this is what the LORD says: David will never lack a man to sit on the throne of the house of Israel, nor will the priests who are Levites ever fail to have a man before Me to offer burnt offerings, to burn grain offerings, and to present sacrifices."
Significance
Zechariah 6:11-13 crowns the high priest Joshua and declares that "the Branch" will "be a priest on His throne, and there will be peaceful counsel between the two" — that is, between the two offices. This merging of royal and priestly functions develops Jeremiah 33:14-18, which promises both a "righteous Branch" (צֶמַח צְדָקָה, tsemach tsedaqah) for David and perpetual Levitical priests to offer sacrifices. Jeremiah keeps the royal and priestly offices separate but parallel; Zechariah moves toward their unification in a single figure. The symbolic crowning of Joshua (a priest) with the title "Branch" (a royal designation from Jeremiah) enacts the fusion that Jeremiah anticipated but did not explicitly merge, advancing the messianic portrait toward a priest-king figure. The verbal hinge is citation-grade: the shared Branch vocabulary — צֶמַח (tsemach, H6780) with its cognate verb צָמַח (tsamach, H6779) — co-occurs in only four verses in the entire Hebrew canon (Isaiah 61:11; Jeremiah 33:15; Ezekiel 16:7; Zechariah 6:12), and both anchors of this pair stand inside that set. The rarity of the co-occurrence, not the frequency of any single word, is what carries the allusion.