Among the various corpora of the New Testament, special emphasis is given to the Johannine corpus, as it is the only one with several literary genres: gospel, letters and apocalypse. The Gospel, even with its differences in style, symbolism, chronology, geography, vocabulary and theology, offers the thematic block of the resurrection (Jn 20), containing reports of the appearances of the Risen one. In this research, the appearance of the resurrected Jesus in John 20:24-29 stands out, highlighting Thomas s profession of faith (v.28), analyzing it in its Old Testament basis (Ps 35(34):23), through a historical survey with scholars, also using the process of textual critical analysis, in the literary, semantic and morphological spheres, as well as rhetorical elements and the use of the Semitic Biblical Rhetorical Analysis method, ending with an exegetical-theological commentary on the mentioned pericope.