Geevarghese Mar Osthathios (1918-2012) was a South Indian Orthodox theologian whose theological
reflections are a unique combination of Protestant principles and Orthodox ethos. His life and
work contextually occupy a significant place in the development of the Malankara Orthodox
Syriac Church. In addition his preoccupation with missionary work in Indian conditions has
been intertwined with ecumenical currents of the second half of the 20th century. The central
expression of his theology lies in the Trinity as for him Trinity has relational implications
on socio-political level its relevance and the applicability as a critique of societal
systems of governing. Therefore the book by Ilija Jovic deals with the focal points of his
Trinitarian theology missiological as well as ecumenical perspectives and their social
consequences. Moreover by determining and critically examining Mar Osthathios argumentation
that structuring of society should be based on the model of the Trinity Jovic's study takes
precedent in giving concern to social challenges within the Oriental Orthodox Theology.