Like the codification of Scripture, the codification of Canon Law speaks to the importance of Canon Law. Just as the Hebrew Scriptures and Rabbinic teachings codify the Law in order to make things plain, so the gathering of laws creates standards, not to control behavior but for understanding how to act based on oral and written Tradition.
It is the effort of bringing things together which allow for their discussion, and from that discussion an understanding of the meaning of the Law. If the Law was set, was an inert, static thing, then there would be no need for the prophets. It is not that the Law can be changed but that it can be understood better. This is why God writes in on our heart not just on stone tablets.
Raymond's efforts pulled together a myriad of confusing and differing rules which sought to help explain the will of God and made them a cohesive whole capable of helping to explain the will of God.
Jesus returned to Galilee in the power of the Spirit, and news of him spread throughout the whole region. He taught in their synagogues and was praised by all. He came to Nazareth, where he had grown up, and went according to his custom into the synagogue on the sabbath day. He stood up to read and was handed a scroll of the prophet Isaiah. He unrolled the scroll and found the passage where it was written:
The Spirit of the Lord is upon me, because he has anointed me to bring glad tidings to the poor. He has sent me to proclaim liberty to captives and recovery of sight to the blind, to let the oppressed go free, and to proclaim a year acceptable to the Lord.
Rolling up the scroll, he handed it back to the attendant and sat down, and the eyes of all in the synagogue looked intently at him.
He said to them,
“Today this Scripture passage is fulfilled in your hearing.”
And all spoke highly of him and were amazed at the gracious words that came from his mouth.
-- Luke 4:14-22