 Vitringa’s two chief works are his dissertation on the synagogue, "De Synagoga Vetere Libri Tres" (Franeker, 1685; 2d ed.1696); and his "Commentary on Isaiah" (Leeuwarden, 1714–20), which was frequently republished in the eighteenth century.The latter was up to the time of Gesenius the most considerable contribution to the exegesis of Isaiah.