A declaration of Yahweh: "Behold, days are coming, when I establish a righteous Branch for David. A King will reign, be wise, and do justice and righteousness in the land." (Jeremiah 23:5)
In the Name + of Jesus. Amen. Jesus is "Yahweh who saves." He saves His people. He saves them because they need saving from their sins. They're His people. How could He not save them? You, too! How could He not save you? He created you. He saves His creation.
Certainly there was nothing in you that deserved saving. You didn't earn it. You couldn't have! What's just and righteous is to throw you in hell, to not save you. Even after God saved you, you've sinned. You've turned away. You've been scattered by so many desires. So many things and people draw your attention away from your Lord and Savior. Does it even bother you?
But this is why the righteous Branch comes, the King from David's line. He endures justice, God's justice, His wrath for sin. Jesus has borne the brunt of it FOR YOU. He did because He bore your sins in His own body on the tree. Your sins became His. He did this FOR YOU because He loves you. Why does Jesus love you? Because "God is love" (1 John 4:8). And there on Calvary, at the intersection of the cross, God's justice and love meet.
The result of this wonderful meeting is righteousness. Righteousness FOR YOU. Yes, Jesus took your sin, but your sin gets swapped out for Jesus' own righteousness. That's the sort of reign Jesus has as "King of the Jews." He wins, purchases, grasps hold of that FOR YOU. Not only that: He delivers it to you. He does it with His Name, placing it upon your forehead with the Word-filled water of Holy Baptism. There He surrounds you, wraps you, and clothes you with His righteousness. It's yours! Jesus gave it to you.
You are saved. That's Jesus: "Yahweh saves." He dies for you. Takes your sins, but gives you His righteousness. That's the sort of King and God He is. He is just--enduring justice. He is love--demonstrating His love. He is righteousness, doling it out to sinners. Jesus Himself is your righteousness now and forever. In the Name + of Jesus. Amen.