Contradiction with 2 Samuel 8:10-11
These verses indicate that David dedicated the spoils of war to the Lord, but they do not mention Shelomith or his brethren as being in charge of them, suggesting a different account of responsibility.
2 Samuel 8:10-11: Then Toi sent Joram his son unto king David, to salute him, and to bless him, because he had fought against Hadadezer, and smitten him: for Hadadezer had wars with Toi. And [Joram] brought with him vessels of silver, and vessels of gold, and vessels of brass: [Joram: also called, Hadoram] [salute...: Heb. ask him of peace] [had wars...: Heb. was a man of wars with] [brought...: Heb. in his hand were]
Contradiction with 1 Chronicles 29:6-7
These verses imply a collective dedication made by the leaders of Israel, but do not reference the specific individuals mentioned in 1 Chronicles 26:26, suggesting a difference in who is entrusted with these treasures.
1 Chronicles 29:6-7: Then the chief of the fathers and princes of the tribes of Israel, and the captains of thousands and of hundreds, with the rulers of the king's work, offered willingly,