This theological continuity among them [the Abrahamic religions of Judaism, Christianity and Islam] is profound, especially given that the great religions of Eastern Asia, the dominant schools of Greek philosophy, modernity and postmodernity, in short almost all other religious and philosophical systems, cannot claim anything close to this level of doctrinal continuity.
My two cents
Yeah, I think in the last few months I’ve become more interested in the comparative elements of the Abrahamic religions. I think about half of the world’s people are members of an Abrahamic faith; what a good figure and I wonder what Abraham himself would think of it.
Dodds, A. (2009). The Abrahamic Faiths? Continuity and Discontinuity in Christian and Islamic Doctrine. Evangelical Quarterly. 81 (3), 230-253.