Isaiah 3:4

Leaders Of Judah And Jerusalem

³
The captain of fifty and the man of honor,
The counselor and the expert artisan,
And the skillful enchanter.
⁴ 
And I will make mere boys their princes,
And capricious (impulsive, unpredictable) children will rule over them.
⁵
And the people will be oppressed,
Each one by another, and each one by his neighbor;
The boy will be arrogant and insolent toward the elder
And the vulgar (common) toward the honorable [person of rank].

Rule Over

Ecclesiastes 10:16

Woe to you, O land, when your king is a child and when your [incompetent] officials and princes feast in the morning.

1 Kings 3:7-9

So now, O Lord my God, You have made Your servant king in place of David my father; and as for me, I am but a little boy [in wisdom and experience]; I do not know how to go out or come in [that is, how to conduct business as a king].

2 Chronicles 33:1

Manasseh was twelve years old when he became king, and he reigned for fifty-five years in Jerusalem.

2 Chronicles 34:1

Josiah was eight years old when he became king, and he reigned for thirty-one years in Jerusalem.

2 Chronicles 36:2

Joahaz was twenty-three years old when he became king, and he reigned [only] three months in Jerusalem.

2 Chronicles 36:5

Jehoiakim was twenty-five years old when he became king, and he reigned for eleven years in Jerusalem; and he did evil in the sight of the Lord his God.

2 Chronicles 36:9

Jehoiachin was eight[teen] years old when he became king, and he reigned for three months and ten days in Jerusalem, and he did evil in the sight of the Lord.

2 Chronicles 36:11

Zedekiah was twenty-one years old when he became king, and he reigned for eleven years in Jerusalem.