How does Jesus Christ fulfill the requirements of the law?

The sermon highlights that Jesus Christ was made like unto His brethren in order to fulfill all righteousness and bear the weight of sin. His obedience to the law and subsequent sacrifice on the cross satisfy the demands made by the law on behalf of those He came to save. Unlike Moses, who was faithful but ultimately a servant pointing to the greater reality, Jesus is the embodiment of the law's purpose, being both the one who upholds the law and the one who provides atonement for breaking it. Hence, through His death and resurrection, He fulfills what the law required and enables believers to stand before God justified.