How do we know Jesus Christ fulfills the role of King and the ultimate revelation of God?

The sermon draws a parallel between King Josiah's role in restoring true worship and Jesus Christ's ministry. Just as Josiah read the book of the law to the people, Christ is identified as the personified Word of God, who came to declare the Father. He reveals God's righteousness, wisdom, and the only way to salvation through His life, death, and intercession. The truth of Christ as the mediator underscores that no one can approach God except through Him, fulfilling the prophetic role of the Old Testament kings in leading God’s people to worship Him rightly.