Charles Ellicott Commentary 2 Kings 22:1

"Josiah was eight years old when he began to reign; and he reigned thirty and one years in Jerusalem: and his mother`s name was Jedidah the daughter of Adaiah of Bozkath." — 2 Kings 22:1 (ASV)

THE REIGN OF JOSIAH (2 Kings 22:0, 2 Kings 23:30; compare 2 Chronicles 24:25)

Josiah. —The name seems to mean “Jah heals.” (Isaiah 30:26.)

Eight years old. —The queen-mother was probably paramount in the government during the first years of the reign.

Boscath. —In the lowland of Judah (Joshua 15:39).

He reigned thirty-one years. —And somewhat over. (Jeremiah 25:1; Jeremiah 25:3; according to which passages, it was twenty-three years from the thirteenth of Josiah to the fourth of Jehoiakim.)