David Navarro is Professor in the Department of World Languages and Literatures in Texas State University, and brings to this project expertise in medieval Iberian literature and historiography, biblical exegesis, Jewish–Christian relations in the Iberian kingdoms, and Judeo-Spanish. He contributes with the identification of non-cited Hebrew sources in the GE, especially those of Biblical origin that might shed light on the different Jewish handwritings involved in the compilation of the text.