Man and Sin by Piet Schoonenberg (1964) 2.3 LG
Summary of text [comment] page 83
[Here is a strange claim:
In the late Roman Empire, the converted Jew and the Jesus-worshipping slave may have been marginally more economically productive than the Second Temple Jew and the pagan slave.
The former were not of this world3a. They were in the world3a but not of it. Therefore, they did not bother with unproductive fantasies2a.]