Either because the people were generally corrupt and backward to the worship of God, especially where it cost them any thing; or because the persons employed in making the collections were negligent, or unfaithful, perverting the money received to their own uses, as may seem probable from the contrary character of other persons, of whom it is noted that they dealt faithfully, below, 2 Kings 12:15; or because the people did not like this way of collection, and had no good opinion of the collectors faithfulness.
Related Commentaries of 2 Kings 12:6
2 Kings 12:6
6 But it was so, that in the threeb and twentieth year of king Jehoash the priests had not repaired the breaches of the house.