Martin J. Mulder was born in Ter Aar, The Netherlands, in 1923. He studied theology at the Free University of Amsterdam and Semitic languages at Leiden University. He was professor of Semitic languages at the Free University of Amsterdam (1970-1979) and professor of Old Testament at Leiden University (1979-1989), and also director of the Peshitta Institute of the same university. He published a large number of studies on Israelite religion, the Old Testament and the Ancient Versions, and Hebrew and Aramaic. Martin Mulder died in 1994.

Harry Sysling was born in Voorst, The Netherlands, in 1947. He studied theology and Semitic languages at the Free University of Amsterdam and received his PhD in 1991 from the University of Leiden. He lectured in Rabbinic Hebrew at Leiden University and worked as a translator for the New Dutch Bible Translation. He is presently engaged in research on targumic studies at the Theological University of Kampen. He has published principally in the area of Hebrew and Aramaic.