Drawing for explanation flourished in the medieval West in biblical exegesis. Some Christian and Jewish scholars, holding that the literal meaning of the holy scriptures had to be established before the allegorical and typological meanings could be reached, made good use of visual exegesis. Of the few Christian scholars who attempted a literal interpretation of the notoriously difficult Old Testament book of the prophet Ezekiel, one was Richard of St Victor and another was Nicholas of Lyra, who had read Richard's (...) work and also, like him, seen the Jewish scholar Rashi's illustrations for Ezekiel. Both Richard and Nicholas supported their arguments with the plans of Ezekiel's visionary temple and the map that places the temple in its regional context discussed in this essay. Also discussed is the subsequent adaptation of these medieval diagrammatic maps for a quite different readership. (shrink)