Desiring to walk in the way of obedience to Jehovah, he instituted an intensive campaign to stamp out the abominable practice of idolatry that had eaten into the vitals of the nation during the reigns of his father and grandfather, Amon and Manasseh.
... During the fifty-five years that Josiah’s grandfather, Manasseh, reigned and the two years that his father, Amon, ruled, the upkeep of the temple had been neglected, although it was used in the practice of idolatry for much of that period.