“The Branch of Righteousness (the Messiah) Is Promised—the Seed of David (the Messiah) Will Reign Forever”
Jeremiah 33:15–21
15 In those days, and at that time, will I cause the Branch of righteousness to grow up unto David; and he shall execute judgment and righteousness in the land.
16 In those days shall Judah be saved, and Jerusalem shall dwell safely: and this is the name wherewith she shall be called, The Lord our righteousness.
17 For thus saith the Lord; David shall never want a man to sit upon the throne of the house of Israel;
18 Neither shall the priests the Levites want a man before me to offer burnt offerings, and to kindle meat offerings, and to do sacrifice continually.
19 And the word of the Lord came unto Jeremiah, saying,
20 Thus saith the Lord; If ye can break my covenant of the day, and my covenant of the night, and that there should not be day and night in their season;
21 Then may also my covenant be broken with David my servant, that he should not have a son to reign upon his throne; and with the Levites the priests, my ministers.
Elder Bruce R. McConkie wrote:
“That the Branch of David is Christ is perfectly clear. We shall now see that He is also called David, that He is a new David, an Eternal David, who shall reign forever on the throne of His ancient ancestor. ‘It shall come to pass in that day, saith the Lord of hosts,’ that is, in the great millennial day of gathering, that ‘they shall serve the Lord their God, and David their king, whom I will raise up unto them’ (Jer. 30:8–9).
“‘In those days, and at that time, will I cause the Branch of righteousness to grow up unto David; and he shall execute judgment and righteousness in the land. In those days shall Judah be saved, and Jerusalem shall dwell safely: and this is the name wherewith she shall be called, The Lord our righteousness,’ which is to say that because the Great King Himself reigns in her midst, even the city shall be called after Him. ‘For thus saith the Lord; David shall never want a man to sit upon the throne of the house of Israel. . . . If ye can break my covenant of the day, and my covenant of the night, and that there should not be day and night in their season; then may also my covenant be broken with David my servant, that he should not have a son to reign upon his throne’ (Jer. 33:15–21). David’s temporal throne fell long centuries before our Lord was born, and that portion of Israel which had not been scattered to the ends of the earth was in bondage to the iron yoke of Rome. But the promises remain. The eternal throne shall be restored in due course with a new David sitting thereon, and He shall reign forever and ever.”
(The Promised Messiah: The First Coming of Christ [1978], 193–94.)