Adam Clarke on 2 Kings 22:4

That he may sum the silver - As Josiah began to seek the Lord as soon as he began to reign, we may naturally conclude that the worship of God that was neglected and suppressed by his father, was immediately restored; and the people began their accustomed offerings to the temple. Ten years therefore had elapsed since these offerings began; no one had, as yet, taken account of them; nor were they applied to the use for which they were given, viz., the repairing the breaches of the temple.