Contradiction with 2 Chronicles 9:26
This verse speaks of Solomon reigning over a vast kingdom, in contrast to the limited scope of Jehoiada's influence mentioned in 2 Chronicles 23:1.
2 Chronicles 9:26: And he reigned over all the kings from the river even unto the land of the Philistines, and to the border of Egypt. [river: that is, Euphrates]
Contradiction with 1 Samuel 8:9
This verse describes God's warning against having a king, contradicting the support for a king (Joash) in 2 Chronicles 23:1.
1 Samuel 8:9: Now therefore hearken unto their voice: howbeit yet protest solemnly unto them, and shew them the manner of the king that shall reign over them. [hearken...: or, obey] [howbeit...: or, notwithstanding when thou hast solemnly protested against them then thou shalt]
Contradiction with Hosea 13:11
This verse mentions God giving a king in anger, contrasting with the positive connotation of establishing a king in 2 Chronicles 23:1.
Hosea 13:11: I gave thee a king in mine anger, and took [him] away in my wrath.
Contradiction with Judges 21:25
This mentions there was no king in Israel, contradicting the establishment of a king in 2 Chronicles 23:1.
Judges 21:25: In those days [there was] no king in Israel: every man did [that which was] right in his own eyes.
Contradiction with 1 Samuel 17:47
This verse emphasizes that victory belongs to the Lord, not by sword or spear, contrasting the military alliance in 2 Chronicles 23:1.
1 Samuel 17:47: And all this assembly shall know that the LORD saveth not with sword and spear: for the battle [is] the LORD'S, and he will give you into our hands.