How do we know that Christ is our ultimate high priest?

In the sermon, it is emphasized that Jesus Christ is not only the high priest but also the perfect sacrifice on behalf of His people. Unlike human high priests who are flawed, Christ was appointed by God to fulfill this role perfectly. He intercedes for us as our mediator before God, ensuring that our prayers and worship are accepted. This unique role of Christ underscores His divinity and His ability to bridge the gap between a holy God and sinful humanity, evidencing His superiority over all other religious figures, including Moses, who served merely as a servant.