This volume offers a critical edition and translation of Jacob of Serugh's Homily on the Apostle Thomas and the Resurrection of Our Lord that focuses on John 20:19-28. The introduction describes the twenty-nine manuscripts that preserve the homily, details the construction of a stemma, presents case studies of editorial decisions based on neo-Lachmannian principles, and explains the systems of punctuation, orthography, and diacritical points. It also draws attention to the reception of the homily by attending to the producers and users of the manuscripts as well as the homily's transmission in exegetical, liturgical, and hagiographical collections. The apparatus and appendices highlight paratextual marginalia, excerpts of the homily in the Syriac "Masora," the incorporation of the homily into a liturgical rite, additions to the homily, and section divisions in manuscript witnesses. Overall, the volume seeks to navigate between employing a neo-Lachmannian editorial praxis and addressing the interests of material philology.