Social activity of a man in the discourse of secular theology

The article deals with understanding of social activity of a man in the concepts of secular theology that emerged in the XX century, particularly in D. Bonhoeffer and T. Altizer who formulated the ideas of “non-religious Christianity” and “Christian atheism”. The author explores these ideas and their social role in the light of the problem of alienation of a man and Christian principle of “existence for others”.