That prepareth his heart to seek God, the Lord God of his fathers,.... Who was heartily desirous of worshipping God, and observing his ordinances, which had been enjoined their fathers, and they had kept; though Aben Ezra, as Kimchi observes, refers this to Hezekiah: whose whole heart he directed, or prepared to seek the Lord, &c. by prayer and supplication for everyone of the said persons: though he be not cleansed according to the purification of the sanctuary: according to the ceremonial law, which the service of the temple required; since, though they were attended with a ceremonial impurity, had a moral purity, and their hearts were right with God.