The first theme of Chapter Three spells it out explicitly in the title: everybody proclaims.
I. THE ENTIRE PEOPLE OF GOD PROCLAIMS THE GOSPEL
111. Evangelization is the task of the Church. The Church, as the agent of evangelization, is more than an organic and hierarchical institution; she is first and foremost a people advancing on its pilgrim way towards God. She is certainly a mystery rooted in the Trinity, yet she exists concretely in history as a people of pilgrims and evangelizers, transcending any institutional expression, however necessary. I would like to dwell briefly on this way of understanding the Church, whose ultimate foundation is found in the free and gracious initiative of God.
It seems amazing that the Roman Catholic perspective, at least officially, has evolved so much from a hierarchy-centered operation into a body driven by baptism. The Church is just people. And those people, all of them who consider themselves daughters and sons of God, are urged to reach out to seekers, doubters, and non-believers. The clergy won’t do it for us. Indeed, they are incapable of reaching the numbers the rest of us can indeed reach.
Pope Francis’ apostolic exhortation Evangelii Gaudium is available online in its entirety.