In his classic 1984 book, The Naked Public Square: Religion and Democracy in America, Father Richard John Neuhaus argued that:
The secularism of late modernity (and, now, post-modernity) would not be neutral, civil, and tolerant, but aggressive, rude, and hegemonic. It would demand, not a civil public square in which the sources of all moral convictions would be in play in a robust debate, but a naked public square — a public square in which secularism would be de facto established as the national creed (or, perhaps better, national moral grammar). The new secularism would not be content to live and let live; it was determined to push, not only religion, but religiously informed moral argument, out of public life, and to do so on the ground that religious conviction is inherently irrational. And of course it would be but a short step from there to the claim that religious conviction is irrational bigotry ....
His warning, of course, has proven highly prescient. We live in a culture increasingly hostile to religious principles being advocated in the public square. In his Apostolic Exhortation of the Holy Father Francis to the Bishops, Clergy, Consecrated Persons and the Lay Faithful on the Proclamation of the Gospel in Today’s World, Pope Francis emphatically insists that religion has a proper place in the public square:
The Church’s pastors, taking into account the contributions of the different sciences, have the right to offer opinions on all that affects people’s lives, since the task of evangelization implies and demands the integral promotion of each human being. It is no longer possible to claim that religion should be restricted to the private sphere and that it exists only to prepare souls for heaven. We know that God wants his children to be happy in this world too, even though they are called to fulfilment in eternity, for he has created all things “for our enjoyment” (1 Tim 6:17), the enjoyment of everyone. It follows that Christian conversion demands reviewing especially those areas and aspects of life “related to the social order and the pursuit of the common good”.
Consequently, no one can demand that religion should be relegated to the inner sanctum of personal life, without influence on societal and national life, without concern for the soundness of civil institutions, without a right to offer an opinion on events affecting society. Who would claim to lock up in a church and silence the message of Saint Francis of Assisi or Blessed Teresa ofCalcutta? Theythemselveswouldhavefound this unacceptable. An authentic faith – which is never comfortable or completely personal – always involves a deep desire to change the world, to transmit values, to leave this earth somehow better that we found it. We love this magnificent planet on which God has put us, and we love the human family which dwells here, with all its tragedies and struggles, its hopes and aspirations, its strengths and weaknesses. The earth is our common home and all of us are brothers and sisters. If indeed “the just ordering of society and of the state is a central responsibility of politics”, the Church “cannot and must not remain on the sidelines in the fight for justice”.
I'm confident Father Neuhaus would agree that this is a magnificent statement of the role of religion in the public square.