Evidently you are avoiding the question. The Abrahamic and Davidic covenants will without fail be fulfilled to the letter.
By the way, dispensationalism has an issue if Jesus is not sitting on the throne of David now.
Is that their claim?
Because, if it is, the Davidic Covenant has failed. God said that Israel would never cease to have a descendant of David sitting on the throne. So, if Jesus isn't sitting on the throne of David now in heaven, the Davidic Covenant has failed.
But..it hasn't failed because that is exactly where he is at. If there was any gap between David and the current time, then the Davidic Covenant failed.
Here's the Got Questions article on this (by the way they are dispensational..I like everything else about them except eschatology):
{quote}
Question: "What is the Davidic covenant?"
Answer: The Davidic Covenant refers to God’s promises to David through Nathan the prophet and is found in
2 Samuel 7 and later summarized in
1 Chronicles 17:11–14 and
2 Chronicles 6:16. This is an unconditional covenant made between God and David through which God promises David and Israel that the Messiah (Jesus Christ) would come from the lineage of David and the tribe of Judah and would establish a kingdom that would endure forever. The Davidic Covenant is unconditional because God does not place any conditions of obedience upon its fulfillment. The surety of the promises made rests solely on God’s faithfulness and does not depend at all on David or Israel’s obedience.
The Davidic Covenant centers on several key promises that are made to David. First, God reaffirms the promise of the land that He made in the first two covenants with Israel (the Abrahamic and Mosaic Covenants). This promise is seen in
2 Samuel 7:10, “I will provide a place for my people Israel and will plant them so that they can have a home of their own and no longer be disturbed. Wicked people will not oppress them anymore.” God then promises that David’s son will succeed him as king of Israel and that this son (Solomon) would build the temple. This promise is seen in
2 Samuel 7:12–13, " I will raise up your offspring to succeed you, your own flesh and blood, and I will establish his kingdom. He is the one who will build a house for my Name.”
But then the promise continues and expands: “I will establish the throne of his kingdom forever” (verse 13), and “Your house and your kingdom will endure forever before me; your throne will be established forever” (verse 16). What began as a promise that David’s son Solomon would be blessed and build the temple turns into something different—the promise of an everlasting kingdom. Another Son of David would rule forever and build a lasting House. This is a reference to the Messiah, Jesus Christ, called the Son of David in
Matthew 21:9.
The promise that David’s “house,” “kingdom,” and “throne” will be established forever is significant because it shows that the Messiah will come from the lineage of David and that He will establish a kingdom from which He will reign. The covenant is summarized by the words “house,” promising a dynasty in the lineage of David; “kingdom,” referring to a people who are governed by a king; “throne,” emphasizing the authority of the king’s rule; and “forever,” emphasizing the eternal and unconditional nature of this promise to David and Israel.
Other references to the Davidic Covenant are found in
Jeremiah 23:5;
30:9;
Isaiah 9:7;
11:1;
Luke 1:32,
69;
Acts 13:34; and
Revelation 3:7.
{end quote}
https://www.gotquestions.org/Davidic-covenant.html
So, my question to you is, under dispensationalism, who is sitting on the Davidic throne? And, how long will he be on the throne?
If you say, Jesus, we are in agreement.
If you say, no one, we are not in agreement. If you say, no one, and David will sit on it, then I don't agree. I know where you're getting the verses from, and I know how your dispensational hermeneutic demands that you say David if you are inconsistent, but you can't have it both ways
You see, the prophets say David will sit on this throne, but it is really talking about Jesus. I suppose that one causes dispensationalists to blow a fuse.