Streszczenie:
In our times the reality of the Church as the personal and social relations between God and man is one of the most criticized and misunderstood part of Christian theology and life. Reminding and justifying the necessity of the Church for the fulfillment of Christian and human lite is one of the most important tasks of theology. This is a specific subject of fundamental ecclesiology. In this paper one can find a panoramic presentation of different strategies, systems and arguments for the credibility of the Church.