As Jonah on his voyage confronted each religion calling out to its own god, we need to have an understanding of our daily encounters in an age of globalization. And as Jonah needed to learn that he could not dwell alone or refrain from speaking to the gentile of Nineveh, we need to learn that we have to encounter the broader world and we cannot refrain from engaging other religions in an age of globalization. Hence, we need our own theology of other religions.
==References===
[1] Alon Goshen-Gottstein, [http://www.jcrelations.net/en/displayItem.php?id=1754 "Jewish-Christian Relations: From Historical Past to Theological Future" Ecumenism No. 146 (2002)].