Jey Kanagaraj says this about the Johannine prologue and how the gospel is encapsulated within it:
The whole Gospel according to the prologue evolves around one theme: the revelation of the one God in his glory and his encounter with all human beings in the life and mission of Jesus, the pre-existent God-become-flesh, to found and nurture a witnessing new covenant community.
John: New Covenant Commentary (9)
CWoznicki Think Out Loud 