2 Chronicles 34:3

3 In the eighth year of his reign, while he was still young, he began to seek the God of his father David. In his twelfth year he began to purge Judah and Jerusalem of high places, Asherah poles and idols.

Read 2 Chronicles 34:3 Using Other Translations

For in the eighth year of his reign, while he was yet young, he began to seek after the God of David his father: and in the twelfth year he began to purge Judah and Jerusalem from the high places, and the groves, and the carved images, and the molten images.
For in the eighth year of his reign, while he was yet a boy, he began to seek the God of David his father, and in the twelfth year he began to purge Judah and Jerusalem of the high places, the Asherim, and the carved and the metal images.
During the eighth year of his reign, while he was still young, Josiah began to seek the God of his ancestor David. Then in the twelfth year he began to purify Judah and Jerusalem, destroying all the pagan shrines, the Asherah poles, and the carved idols and cast images.