This dissertation aims to study about the Holy Spirit-Paraclete and its functions, as described in Jn 16,4b-15, situated within the framework of the chapters 13–17 titled farewell speech . This pericope describes the duties performed by the Paraclete, which are specific, unmistakable, and are not mentioned in the other logions about the Paraclete in Jn 14,15-17; Jn 14,25-26; Jn 15,26-27. However, for the further development of this subject, the deepening of the issues surrounding the Fourth Gospel was necessary, regarding: the formation of the Gospel, the theological aspects, the relationship between the Beloved and the author, place of origin, the hypotheses of the composition, as well as the context that influenced the Johannine thought, all of which called Ioannina Issue . Thus, from this contribution we developed the exegesis of the pericope, with the guiding question: How can one understand that the departure of Jesus was necessary for the Paraclete to be sent (cf. Jn 16,7)? This is a question upon which the interrelationship between the Son s mission and the mission of the Paraclete is established, as well as the fact that the narratives about the sending of the Paraclete, oftentimes it is the Father who sends through the intercession of Jesus (cf. Jn 14,16.26), oftentimes it is the Son who sends the Paraclete from the nearness of the Father (cf. Jn 15,26; Jn 16,7). To reach the answer of this question, there was the application of the historical-critical method and the research works of modern authors, which led to the conclusion that that there is an interrelationship between the Son s mission and the mission of the Paraclete, that is, the Spirit continues the Son s work through the witness of the disciples.