The theology of Pope Benedict XVI, as promulgated during his pontificate, consists mainly of three encyclical letters on love (2005), hope (2007), and "charity in truth" (2009), as well as apostolic documents and various speeches and interviews. Pope Benedict XVI's theology underwent developments over the years, many of which were characterized by his leadership position in the Congregation for the Doctrine of the Faith, which is entrusted with preserving the Catholic faith in its entirety.

His theology originated in the view that God speaks to us through the Church today and not just through the Bible. The Bible does not teach natural science but rather it is a testimonial to God's revelation.Cardinal Joseph Ratzinger, "In the Beginning...": A Catholic Understanding of the Story of Creation and the Fall (Michigan: Wm. B. Eerdmans Publishing Co.. 1995), P. 5.

Theology Benedict spoke as a theologian and as prefect of the Congregation for the Doctrine of the Faith long before he became Pope. It is in his three encyclicals and other papal letters that we see his evolving theology combined with his authority as Pope.

God is Love

In his first Encyclical as Pope, Deus caritas est,ENCYCLICAL LETTER, DEUS CARITAS EST OF THE SUPREME PONTIFF BENEDICT XVI TO THE BISHOPS PRIESTS AND DEACONS MEN AND WOMEN RELIGIOUS AND ALL THE LAY FAITHFUL ON CHRISTIAN LOVE, Vatican 2005 Benedict XVI describes God as love, and talks about the love which God lavishes upon us and which we in turn must share with others through acts of charity.

His letter has two parts. A theological speculative part, in which he describes "the intrinsic link between that Love and the reality of human love". The second part deals with practical aspects, and calls the world to new energy and commitment in its response to God's love.Deus Catitas Est, 2

Benedict writes about love of God, and considers this important and significant, because we live in a time in which "the name of God is sometimes associated with vengeance or even a duty of hatred and violence":

Benedict develops a positive view of sex and eros in this first encyclical, which would do away with the Victorian view of the human body. Love between man and woman is a gift of God, which should not be exploited:

Nowadays Christianity of the past is often criticized as having been opposed to the body; and it is quite true that tendencies of this sort have always existed. Deus caritas est, 5... but ... eros, reduced to pure "sex", has become a commodity, a mere "thing" to be bought and sold, or rather, man himself becomes a commodity. This is hardly man's great "yes" to the body. On the contrary, he now considers his body and his sexuality as the purely material part of himself, to be used and exploited at will.Deus caritas est, 6

In the encyclical Benedict avoids condemnations which characterized his writing as prefect of the Congregation for the Doctrine of the Faith and also corrects a view of sex as purely for procreation.

Faith-based hope

In his second encyclical, Spe Salvi,Benedict XVI, Encyclical Letter Spe salvi Vatican November 30, 2007 Benedict XVI explains the concept of faith-based hope in the New Testament and the early Church. He suggests a redirection of often short-sighted hopes. Real hope must be based on faith in God who is love. Christ, the most manifest expression of God's love, dies on the cross not to end slavery, miseries or other temporal problems.

Benedict argues in his letter against two mistaken notions of hope: 1.) Christians who may have focused their hopes too much on their own eternal salvation, and 2.) those who have placed their hope exclusively on science, rationality, freedom and justice for all, thus excluding any notion of God and eternity. Christians find lasting hope by finding their loving God, and this has real consequences for everyday life. In his commentary on slavery, Benedict takes the attitude of Christians in the Roman Empire:

Benedict refers to St. Paul who wrote from prison "Paul is sending the slave back to the master from whom he had fled, not ordering but asking: 'I appeal to you for my child ... whose father I have become in my imprisonment ... I am sending him back to you, sending my very heart ... perhaps this is why he was parted from you for a while, that you might have him back for ever, no longer as a slave but more than a slave, as a beloved brother'" (Philem 10–16).Spe Salvi, 4 He refers then to the Letter to the Hebrews, which says that Christians here on earth do not have a permanent homeland, but seek one which lies in the future (cf. Heb 11:13–16; Phil 3:20).

To Benedict, this does not mean for one moment that they lived only for the future: present society is recognized by Christians as an exile; they belong to a new society which is the goal of their common pilgrimage and which is anticipated in the course of that pilgrimage.Spe Salvi 4 A Christian has a present and future, because of the hope for Jesus Christ, which is life changing.Spe Salvi, 2 All serious and upright human conduct is hope in action.Spe Salvi 35 This hope gives a realistic perspective to understanding suffering and helping others: We can try to limit suffering, to fight against it, but we cannot eliminate it. It is when we attempt to avoid suffering by withdrawing from anything that might involve hurt, when we try to spare ourselves the effort and pain of pursuing truth, love, and goodness, that we drift into a life of emptiness, in which there may be almost no pain, but the dark sensation of meaninglessness and abandonment is all the greater.

Benedict believes that not by sidestepping or fleeing from suffering are we healed, but rather by our capacity for accepting it, maturing through it and finding meaning through union with Christ, who suffered with infinite love.Spe Salvi 37

The Eucharist and the Church In a special letter on the Eucharist and the Church, Benedict describes the Eucharist as the causal principle of the Church.Sacramentum Caritatis: Post-Synodal Apostolic Exhortation on the Eucharist as the Source and Summit of the Church's Life and Mission (February 22, 2007)

A contemplative gaze "upon him whom they have pierced" (Jn 19:37) leads us to reflect on the causal connection between Christ's sacrifice, the Eucharist, and the Church. The Church "draws her life from the Eucharist" (31). Since the Eucharist makes present Christ's redeeming sacrifice, we must start by acknowledging that "there is a causal influence of the Eucharist at the Church's very origins."Sacramentum Caritatis, 32 The Eucharist is Christ who gives himself to us and continually builds us up as his body. Hence, in the striking interplay between the Eucharist which builds up the Church, and the Church herself which "makes" the Eucharist, theSacramentum Caritatis, 33 primary causality is expressed in the first formula: the Church is able to celebrate Christ present in the Eucharist precisely because Christ first gave himself to her in the sacrifice of the Cross. The Church's ability to "make" the Eucharist is completely rooted in Christ's self-gift to her.

What does this mean? According to Benedict, the Eucharist, which is union with Christ, has a profound impact on our social relations. Because "union with Christ is also union with all those to whom he gives himself. I cannot possess Christ just for myself; I can belong to him only in union with all those who have become, or who will become, his own."Sacramentum Caritatis, 241

Theology, science and the dialogue with other cultures

In an address to the faculty at the University of Regensburg, Germany,Quoted as Benedict XVI, Meeting with the representatives of science in the Aula Magna of the University of Regensburg (September 12, 2006), Vatican, 2006. source: https://www.vatican.va/holy_father/benedict_xvi/speeches/2006/september/documents/hf_ben-xvi_spe_20060912_university-regensburg_en.html Benedict discussed the preconditions for an effective dialogue with Islam and other cultures. This requires a review of theology and science.This speech contained a negative citation of a medieval emperor on Islam, which weeks later caused some controversies and clarifications from the Vatican The Pope considers the modern concept of science too narrow in the long run, because it allows the determination of "certainty" only from the interplay of mathematical and empirical elements. "Anything that would claim to be science must be measured against this criterion. Hence the human sciences, such as history, psychology, sociology and philosophy, attempt to conform themselves to this canon of science."Benedict XVI, Meeting with the representatives of science in the Aula Magna of the University of Regensburg (September 12, 2006)

This limited view of scientific method excludes the question of God, making it appear an unscientific or pre-scientific question. For philosophy and, albeit in a different way, for theology, listening to the great experiences and insights of the religious traditions of humanity, and those of the Christian faith in particular, is a source of knowledge, and to ignore it would be an unacceptable restriction of our listening and responding.

Benedict acknowledges "unreservedly" the many positive aspects of modern science, and considers the quest for truth as essential to the Christian spirit, but he favours a broadening our narrow concept of reason and its application to include philosophical and theological experiences, not only as an aim in itself but so we may enter as a culture the dialogue with the other religions and cultures from a broader perspective:

This objective of Pope Benedict XVI has so far not been widely reviewed.

Theology of Joseph Ratzinger

Congregation for the Doctrine of the Faith

Ratzinger became known as a theologian through his position at the Congregation for the Doctrine of the Faith, which he headed from 1981 until his election to the Papacy. While a progressive during the Second Vatican Council,Joseph Cardinal Ratzinger, Aus meinem Leben, Erinnerungen, DVA, 1997, p.101 with developments in Germany after the council he "transformed himself from a young, liberal theologian into an uncompromising guardian of the orthodox". Only in the seventies did he feel that he had developed his own theological view.Joseph Cardinal Ratzinger, Aus meinem Leben, Erinnerungen, DVA, 1997, p.176 As head of doctrine after 1981, Ratzinger described himself as a "watchdog" over church teaching. Karl Rahner's question This "own theological view" has raised questions by critical liberal theologians, like Hans Küng and Karl Rahner.

Divine revelation It all began with the "drama of my dissertation", as he called it,Joseph Cardinal Ratzinger, Aus meinem Leben, Erinnerungen, DVA, 1997, p.77 a seemingly unimportant postdoctoral degree on Bonaventure, which he was almost denied because of serious reservations of some professors with his interpretation of divine revelation. Ratzinger held that God reveals and revealed himself in history and throughout history and not just once to the authors of the Bible.Joseph Kardinal Ratzinger, Aus meinem Leben, Erinnerungen, DVA, 1997, p.84

Creation and Fall