I did not tell you this from the beginning, because I was with you. 5 But now I am going to the one who sent me, and not one of you asks me, ‘Where are you going?’ 6 But because I told you this, grief has filled your hearts. 7 But I tell you the truth, it is better for you that I go. For if I do not go, the Advocate will not come to you. But if I go, I will send him to you. 8 And when he comes he will convict the world in regard to sin and righteousness and condemnation: 9 sin, because they do not believe in me; 10 righteousness, because I am going to the Father and you will no longer see me; 11 condemnation, because the ruler of this world has been condemned.
12 “I have much more to tell you, but you cannot bear it now. 13 But when he comes, the Spirit of truth, he will guide you to all truth. He will not speak on his own, but he will speak what he hears, and will declare to you the things that are coming. 14 He will glorify me, because he will take from what is mine and declare it to you. 15 Everything that the Father has is mine; for this reason I told you that he will take from what is mine and declare it to you.
In this portion of His Farewell Discourse, traditionally identified as John 13:31 to 17:26, Jesus prepares His disciples for the events of His Passion and for the new reality that will follow His return to the Father. He assures them that His departure is not abandonment but the condition for the arrival of the Paraclete—the Holy Spirit—who will complete and continue the work He has begun.
Jesus says, “If I do not go, the Advocate will not come to you” (Jn 16:7). The Greek word used here, Paraklētos, means one who is called to one’s side—translated variously as Advocate, Helper, or Comforter. This is not merely divine assistance but the arrival of a distinct Divine Person. Jesus is not promising an impersonal force, but the Spirit of truth who “will guide you to all truth” (v.13).
This verse reveals the personal identity and mission of the Holy Spirit. The Spirit is not created, but proceeds from the Father and the Son (cf. Jn 15:26), and shares in the fullness of divine knowledge and will: “He will not speak on his own, but he will speak what he hears…” (Jn 16:13). In this, we see the intimate cooperation and shared will of the three Divine Persons.
The Holy Spirit does not bring a new teaching, but deepens and completes the revelation given in Christ. As Jesus says, “He will glorify me, because he will take from what is mine and declare it to you” (Jn 16:14). This reflects the perfect unity between the Father, Son, and Holy Spirit—one divine will and essence, yet three in relation.
As the early Fathers taught, this unity is a communion of persons—not separate beings, but one undivided Divine Nature (one in being), eternal, equal, and perfectly united in love and will—in three hypostases (distinct persons/individual realities).
This mystery of the Trinity is not abstract theology. From the moment of creation, the Trinity has been the object of our faith—the source of our existence, the foundation of our salvation, and the divine communion we are created to share. When we turn from this mystery as our center, we repeat the sin of Adam and Eve, seeking to be like God apart from God, and in doing so, rupture the very relationship for which we were made.
The expression “one undivided Divine Nature in three hypostases” reflects the theological language affirmed in the Niceno-Constantinopolitan Creed, formally approved at the First Council of Constantinople in A.D. 381. This Creed, expanding upon the original Nicene Creed of A.D. 325, clarified the Church’s faith in the Trinity: that the Father, Son, and Holy Spirit are consubstantial (of the same divine essence), yet personally distinct.
The mission of the Holy Spirit, as revealed by Jesus in John 16, unfolds in three interwoven dimensions. First, the Spirit comes to convict the world of sin, righteousness, and judgment (Jn 16:8–11). This conviction is not mere accusation but revelation: the Spirit unveils the truth about sin—especially the sin of unbelief in Christ (v. 9). He reveals the truth about righteousness, for although Christ was condemned by human judgment, He is vindicated by the Father through His resurrection and ascension (v. 10). And He reveals the truth about judgment, for the ruler of this world, Satan, has been definitively judged and overthrown through Christ’s victory on the Cross (v. 11). Though Satan had already fallen through his rebellion against God (cf. Lk 10:18), it is by the Cross that his dominion over sin and death is broken and his power publicly exposed as defeated (cf. Col. 2:15; Heb. 2:14). Through convicting the world of sin, righteousness, and judgment, the Spirit discloses not only moral realities, but the entire divine drama of salvation—the unfolding plan by which God, through Christ, redeems humanity and restores communion with Himself.
Second, the Spirit is sent to guide the Church into all truth (v. 13). This does not mean the revelation of a new gospel, but a deeper unfolding of what Christ has already revealed. As Jesus had said earlier, “The Advocate, the Holy Spirit… will teach you everything and remind you of all that [I] told you” (Jn 14:26). The Spirit ensures both the continuity and the development of doctrine, forming the Church's living understanding of divine truth (cf. Jn 14:26).
Finally, the Spirit comes to glorify Christ (v. 14). He does so not by initiating a separate mission, but by taking what belongs to the Son and making it known to us. As Jesus declares, “All that the Father has is mine; for this reason I told you that he will take from what is mine and declare it to you” (v. 15). In this profound statement, Jesus reveals the inner communion of the Trinity: the Father gives all to the Son; the Son shares all with the Spirit; and the Spirit, in turn, glorifies the Son by revealing Him to the world. This is not a chain of command but a circle of reciprocal self-giving—perfect unity, eternal love, and divine generosity.
Come, Holy Spirit, Spirit of Truth and Light. Lead us into the fullness of truth. Help us to recognize the voice of Christ and glorify the Father in all that we do. Dwell within us and shape us into living witnesses of divine communion. Amen!
Sources
- McSorley, Joseph. An Outline History of the Church by Centuries (From St. Peter to Pius XII). 2nd ed., B. Herder Book Co., 1944.
- Orchard, Bernard, et al. A Catholic Commentary on Holy Scripture. Feb. 1953.
- Chiu, José Enrique Aguilar, et al. The Paulist Biblical Commentary. Paulist Press, 2018.
- Faculty of the University of Navarre. The Navarre Bible: New Testament Expanded Edition. Four Courts / Scepter, 2008.
- Faculty of the University of Navarre. The Navarre Bible: The Pentateuch. Four Courts Press, 2017
- Brown, Raymond Edward, et al. The New Jerome Biblical Commentary. Prentice Hall, 1990.
- Charpentier, Etienne. How to Read the Old Testament. Translated by John Bowden, 1981.
- Komonchak, Joseph, et al., editors. The New Dictionary of Theology.
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