Where does the Bible "repudiate" sola scriptura?
The word of God repudiates the doctrines of men and the "vain janglings" of tradition.
The Bible refers to the Church of Jesus Christ as the pillar of truth. Nowhere does it refer to itself as the sole repository of anything.
The role of the Church is described. It is the entity that Jesus left, not something that men formed 70 years ago.