Contradiction with 2 Samuel 7:15
This says God's mercy will not depart from David's line, while 2 Chronicles 6:42 requests God's mercy not to turn away, implying it might be absent.
2 Samuel 7:15: But my mercy shall not depart away from him, as I took [it] from Saul, whom I put away before thee.
Contradiction with Psalm 89:33-34
States God's covenant and lovingkindness will not break, contrasting 2 Chronicles 6:42 which pleads for God not to turn away His mercy.
Psalm 89:33-34: Nevertheless my lovingkindness will I not utterly take from him, nor suffer my faithfulness to fail. [will...: Heb. I will not make void from him] [to fall: Heb. to lie]
Contradiction with 1 Kings 11:11-13
God promises to take the kingdom away from Solomon’s lineage, which contradicts the imploration in 2 Chronicles 6:42 for continued divine favor.
1 Kings 11:11-13: Wherefore the LORD said unto Solomon, Forasmuch as this is done of thee, and thou hast not kept my covenant and my statutes, which I have commanded thee, I will surely rend the kingdom from thee, and will give it to thy servant. [is done...: Heb. is with thee]