Contradiction with 2 Samuel 5:4
2 Kings 11:21 states that Jehoash was seven years old when he began to reign, whereas 2 Samuel 5:4 mentions David being 30 years old when he became king, indicating a contradiction in the ages of kings when they began to reign.
2 Samuel 5:4: David [was] thirty years old when he began to reign, [and] he reigned forty years.
Contradiction with 1 Kings 3:7
Solomon describes himself as "but a little child" when he becomes king, suggesting an impression of youthful inexperience different from Jehoash's specific age of seven in 2 Kings 11:21.
1 Kings 3:7: And now, O LORD my God, thou hast made thy servant king instead of David my father: and I [am but] a little child: I know not [how] to go out or come in.
Contradiction with 1 Chronicles 29:1
Solomon is described as young and tender, yet Jehoash is explicitly seven years old, emphasizing a difference in their perceived maturity and preparedness for kingship.
1 Chronicles 29:1: Furthermore David the king said unto all the congregation, Solomon my son, whom alone God hath chosen, [is yet] young and tender, and the work [is] great: for the palace [is] not for man, but for the LORD God.
Contradiction with 1 Timothy 3:6
This verse advises against a novice, or one who is immature, taking on leadership, which seemingly contradicts the notion of a seven-year-old king as described in 2 Kings 11:21.
1 Timothy 3:6: Not a novice, lest being lifted up with pride he fall into the condemnation of the devil. [a novice: or, one newly come to the faith]