The Church is built on the entire life of Jesus Christ, not just the Resurrection.

Mary's Yes
His teaching as a young man in the Temple.
His obedience to his parents.
The prompting of Mary at the wedding feast; His response to her pleas.

Even His mostly hidden 30 years prepared the people in the area for His teaching. 

How He must have worked before His public ministry, as an artisan/craftsman, diligent work, just prices, perfect service, and no doubt smiling; He had to have worked with perfect charity, and every human virtue!

We must use our intellect to "penetrate" this part of Jesus. 

And even MORE than the ENTIRE life of Jesus, the work of God extends intimately and crucially to the entire OT too.   That was part of it....it's not "borrowed from"...it's the will of God in nascent form.   It prepared us for the priesthood, for the life of the Sacraments, and even the Mass. 

We have to regain a wider understanding of how big the life, death, and Resurrection of Jesus Christ