The Scriptures are what constitutes the written Word of God. This is what St. Luke started out to do culling content from their experiences with Jesus. He recorded in an orderly manner the events of our dear Lord’s life. So the New Testament did not just come out from thin air, made without a context or done without some supervision of some kind. Hence, Our Lord established a Church with his authority to gather these manuscripts of what would make up Sacred Scriptures and more accurately, the New Testament as we have it. He who hears you, hears me and he who hears me, hears him who sent me. Jesus shared his teaching authority with his ministers. And so the teachings of our Lord spread throughout the world.