Since the beginning of islam in the 7th century christians and Muslims have been a permanent challenge for themselves. the confrontation and the closeness which accompany them through the entire history are rooted in the universal and monotheistic character of both religions. From the christian point of view it would be diffcult to talk about interreligious dialogue or at least its modern developments, without the Second Vatican council (1962–1965) and the declaration nostra aetate. The council recognized in it the spiritual, moral and cultural values present in different religions, emphasizing spiritual and moral values between Muslim and christians. For the frst time in the history of the Catholic Church, the council’s fathers offcially called for the co-operation with Muslims. This is the starting point of the real dialogue between Christians and Muslims.

This article attempts to describe and analyse – in three parts – some aspects of the dialogical initiatives of Christian-Muslim relations. A greater part of it refers to the Roman Catholic Church, but some examples of interpretation and dialogical initiatives of the Orthodox and protestant churches are included as well. Islam as a point of reference is taken as a whole. After a short introduction containing a general defnition of dialogue and its interreligious form the frst part deals with historical facts which shaped the dialogical attitudes. The selected historical facts build a background for some theological ideas on islam in orthodox, catholic and protestant traditions. The second part focuses on the practical aspects of dialogue – its forms and representative institutions, i.e. the pontifcal council for interreligious Dialogue, World council of churches and Orthodox center of the ecumenical patriarch in chambésy which are engaged in the dialogue on behalf of the main christian churches. The third part offers some ideas concerning aarguments for dialogue, its effciency and quality which might be important for the future of dialogue. The modern history of Christian-Muslim relations shows that the dialogue between adherents of these two largest religions is possible despite that it is not an easy undertaking. the author underlines that there is no alternative to dialogue as there is no better way to defeat prejudices and heal the wounds of the past.

Although the Council‘s declaration Nostra aetate has been absorbed by the magisterium, there are new challenges suggesting its acknowledgement and further development. The document’s significance resides in its foundation on Romans 9-11 and in the fact that it has been promulgated at all, in spite of enormous resistance in the years ahead. No. 528 from the Catechism of the Catholic Church rises up out of various official statements with respect to this topic: The three wise men from Jesus’ Epiphany are typical representatives of the pagan religions who have to turn to the Jews in order to receive “from them the messianic promise”. This insight corrects a romanticizing pluralism of religions as it becomes manifest in the terminology of the three “Abrahamic religions”. A further development of Nostra aetate should include two aspects: Overcoming the narrowing down of Judaism and Christianity as a “religion” without refeRence to realities like “the land”, and, secondly, deepening the theological understanding of the referral of Christianity towards Judaism, particularly in connection with the term “People of God”.

Bible and liturgy are the main sources of the Church's life. The Bible tells us about God saving man and the liturgy makes present the salvation given by God. The presentation of the Bible in the liturgy begins with the description of the syna- gogue worship at the time of the early Church. Since the beginning Christians read the Bible during the liturgy. The liturgy of the word was formed gradually, until it reached its final shape in he antiquity. That form was preserved till the Second Vatican Council. The Council resolved to enrich the table of the Divine Word and to read the Scripture in a cycle longer than one year. For Sundays and festivities has been introduced a triennial cycle, the readings of the liturgy of the hours have been changed, biblical readings have been added to the liturgy of the sacraments and the Psalms have been distributed in a 4-weeks cycle.

The words of the Bible are not only read but they become prayer and song. The liturgical prayers draw their inspiration, words and expressions from the Scripture. It is Christ who proclaims the gospel, God speaks to his people and the Church listens to the Divine Word. The liturgy of the Word is closely connected with the liturgy of the Eucharist. During the Mass, the table of the Divine Word and the table of the Eucharist are spread.

The reconstruction of Francis’ gestures, behaviors, and words in terms of his understanding of the Church is fraught with considerable difficulties. On the one hand, the ecclesiological concept he introduced attracts crowds of followers, but on the other, it provokes many individuals to criticize and to adopt the attitude of rejection. In order to understand his teaching on the Church without any distortions, one needs to refer to the Aparecida Document of Latin American Bishops (2007) and to his papal exhortation Evangelii gaudium (2014). The battered Church of Jorge Mario Bergoglio is located primarily on the outskirts of Christianity and grows out of the Argentinian option that encompasses various types of excluded people. Hence, such a community imprudently exposes itself to the accusations, which are not groundless, of promoting religious syncretism, weakening the uniqueness and oneness of Jesus Christ, and questioning ecclesiastical sacramentality.

Intellectual and spiritual formation of Joseph Ratzinger - Pope Benedict XVI - requires talk about the process of his development. The article refers to the most overlooked phase of the young Ratzinger, who moves from the position of a progres-sive and sometimes irresponsible theorizing academic theologian to the position of a thinker grounded in the community of faith, becoming the guardian and teacher of Christian doctrine in line with the spirit and tradition of the Church. A lot of light on the change in the attitude of the German professor sheds the preparatory phase to the Second Vatican Council and its debates, as well as the unpleasant experience of the student revolt in 1968, which finds our professor in Tübingen. And in this way the liberal German theologian grows into to an outstanding Catholic theologian of the universal Church.