The article is an attempt to answer the questions: How to renew the Church? What means can a reformer use? On the basis of a book by H. Küng: The Council, Reform and Reunion, the author suggests that the link between divine and human elements in the Church causes a danger of deformation. That is why there is a constant need for renewal. The reform should follow four steps: (1) feeling pain because of the Church, (2) prayer for its intentions, (3) skilful criticism of errors, (4) prudent actions.