2 Chronicles 34:1

Josiah was eight years old when he became king; he was ruling in Jerusalem for thirty-one years.

Jeremiah 1:2

To whom the word of the Lord came in the days of Josiah, the son of Amon, king of Judah, in the thirteenth year of his rule.

Zephaniah 1:1

The word of the Lord which came to Zephaniah, the son of Cushi, the son of Gedaliah, the son of Amariah, the son of Hezekiah, in the days of Josiah, the son of Amon, king of Judah.

1 Samuel 2:18

But Samuel did the work of the Lord's house, while he was a child, dressed in a linen ephod.

1 Samuel 2:26

And the young Samuel, becoming older, had the approval of the Lord and of men.

1 Kings 3:7-9

And now, O Lord my God, you have made your servant king in the place of David my father; and I am only a young boy, with no knowledge of how to go out or come in.

1 Kings 13:2

And by the order of the Lord he made an outcry against the altar, saying, O altar, altar, the Lord has said, From the seed of David will come a child, named Josiah, and on you he will put to death the priests of the high places, who are burning offerings on you, and men's bones will be burned on you.

2 Kings 22:1-20

Josiah was eight years old when he became king; and he was ruling in Jerusalem for thirty-one years; his mother's name was Jedidah, daughter of Adaiah of Bozkath.

1 Chronicles 3:14-15

Amon his son, Josiah his son.

2 Chronicles 24:1

Joash was seven years old when he became king, and he was ruling for forty years in Jerusalem: his mother's name was Zibiah of Beer-sheba.

2 Chronicles 26:1

Then all the people of Judah took Uzziah, who was sixteen years old, and made him king in place of his father Amaziah.

2 Chronicles 33:1

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

2 Chronicles 33:25

But the people of the land put to death all those who had taken part in the design against King Amon, and made his son Josiah king in his place.

Ecclesiastes 4:13

A young man who is poor and wise is better than a king who is old and foolish and will not be guided by the wisdom of others.

Matthew 1:10-11

And the son of Hezekiah was Manasseh; and the son of Manasseh was Amon; and the son of Amon was Josiah;

Treasury of Scripture Knowledge

Summary

Josiah was eight years old when he began to reign, and he reigned in Jerusalem one and thirty years.

Bible References

Eight years

2 Chronicles 24:1
Joash was seven years old when he became king, and he was ruling for forty years in Jerusalem: his mother's name was Zibiah of Beer-sheba.
2 Chronicles 26:1
Then all the people of Judah took Uzziah, who was sixteen years old, and made him king in place of his father Amaziah.
2 Chronicles 33:1
Manasseh was twelve years old when he became king, and he was ruling for fifty-five years in Jerusalem.
1 Samuel 2:18
But Samuel did the work of the Lord's house, while he was a child, dressed in a linen ephod.
1 Kings 3:7
And now, O Lord my God, you have made your servant king in the place of David my father; and I am only a young boy, with no knowledge of how to go out or come in.
Ecclesiastes 4:13
A young man who is poor and wise is better than a king who is old and foolish and will not be guided by the wisdom of others.

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain