The prophets kept sketching a coming figure called the Branch: a King who is also a Priest, whose name is The Lord Our Righteousness.
The Shadow
Across the prophets, a figure keeps appearing under one code name: the Branch. Jeremiah announces Him against the backdrop of failed kings: I will raise to David a Branch of righteousness; a King shall reign and prosper. Then he gives the Branch a name no mere son of David could carry: The Lord Our Righteousness. Zechariah pushes the portrait further into impossible territory. Behold, the Man whose name is the Branch: He shall build the temple of the Lord, He shall bear the glory, and He shall be a priest on His throne. Israel's constitution kept those offices strictly apart; kings who grasped at priesthood were struck down. Yet the prophets insist: the Branch holds both. And in Zechariah's enacted sign, the crown is set on the head of the high priest, a man named Joshua.
The Fulfillment
This entry wears a pattern badge because the New Testament never quotes a Branch text with a fulfillment formula. But every line of the sketch converges on one Person, and the convergence is the argument. A King in David's line whose reign does not end. A Priest on a throne — the exact portrait Hebrews paints from Psalm 110, and the crown already placed, in sign, on a man bearing the name Jesus. A builder of the true temple, which He raised in three days. And the name: The Lord Our Righteousness — the claim Paul spends Romans unpacking, that righteousness is not achieved by the people but provided by their Lord, who became for us righteousness. The risen Christ takes the family tree as His title: I am the Root and the Offspring of David.
Him All Along
Your King does not send your case to a separate priest, and your Priest does not lack the authority to enforce His verdict. Both offices sit in one Person, and His name settles what He is to you: The Lord Our Righteousness. Not your righteousness, managed by you. His, given, worn, and reigning.