In my contribution to the symposium on Teresa Morgan's Roman Faith and Christian Faith, I set the stage for three questions. First, in the Graeco-Roman view, when you put/maintain faith in someone, is the cognitive aspect of your faith compatible with scepticism about the relevant propositions? Second, did some of the New Testament authors think that one could put/maintain faith in God while being sceptical about the relevant propositions? Third, in her private writings, Saint Teresa of Calcutta described herself as living by faith and yet not believing; even so, by all appearances, she was an exemplar of faith in God. Would people during the period of your study tend to see her as an exemplar of faith in God?

Responding to key questions raised by the other three, this article discusses the factors which led to the development of Christian fideism and why Christians were seen as a threat to wider society. It considers whether early Christian discourses always represent (of characters in narratives), or demand, belief alongside trust and other relational aspects of pistis, and argues that it is sometimes possible to have effective pistis without having right beliefs. It discusses the variable relationship between belief and doubt in New Testament texts, and suggests how the faith of St Teresa of Calcutta might have been viewed by early Christians.