In the Hebrew writer’s general efforts to show the superiority of the new to the old, he here makes a central and strong argument. This would be especially stirring to the Jewish Christians, as our Lord is compared to perhaps the most significant individual in the establishment of their nation and old law — Moses.
First, Jesus was fully faithful to his Father in heaven, as Moses was faithful. But, as was written, “For this one has been counted worthy of more glory than Moses”! Why? Because of the fundamental difference between Moses and Jesus.
Moses was a man. A servant. Jesus is God the Son. Moses is described as “a house”, where Jesus is described as the Builder of the house, thus worthy of more honor.
When we contrast the Old to the New, it is not merely a consideration of the relative merits. They’re both from God, they are both Holy. But it was God’s plan to supplant, in these last days, a limited law with His supreme gift to mankind. His Son!