Contradiction with 2 Samuel 7:16
This verse promises that David's house and kingdom shall be established forever, contradicting the notion in Psalms 89:45 that his days are shortened.
2 Samuel 7:16: And thine house and thy kingdom shall be established for ever before thee: thy throne shall be established for ever.
Contradiction with 1 Chronicles 17:12-14
This passage assures the establishment of David's throne forever, conflicting with the implication in Psalms 89:45 of an untimely end.
1 Chronicles 17:12-14: He shall build me an house, and I will stablish his throne for ever.
Contradiction with Jeremiah 33:17
This verse states that David shall never lack a man to sit on the throne of Israel, contradicting the idea of a shortened reign in Psalms 89:45.
Jeremiah 33:17: For thus saith the LORD; David shall never want a man to sit upon the throne of the house of Israel; [David...: Heb. There shall not be cut off from David]
Contradiction with 1 Kings 9:5
Here, God promises to establish the throne of Israel forever, as He did with David, in contrast with the perceived brevity of David's descendants' days in Psalms 89:45.
1 Kings 9:5: Then I will establish the throne of thy kingdom upon Israel for ever, as I promised to David thy father, saying, There shall not fail thee a man upon the throne of Israel.