And I will ask the Father, and he will give you another Counselor to be with you forever—... (John 14:6).

This "another Counselor" is one of the three beings of the Trinity, and is usually called "the Holy Spirit" in the New Testament. According to Jesus' words above, this being was to be given to the disciples by the Father. Admittedly, at that point, this being was not yet given to them who had already believed that Jesus was the Messiah. This promise of giving the Holy Spirit to his disciples was a part of the "share" that Jesus mentioned when he washed the feet of his disciples: he said to Peter, "Unless I wash you, you have no part (share) with me." This share is what God's heirs are entitled to receive. Note that their whole body must be washed first, and their feet must be washed constantly in order for them to take part in this sharing according to Jesus.

... —the Spirit of truth. The world cannot accept him, because it neither sees him nor knows him. But you know him, for he lives with you and will be in you (v. 17)

This "another Counselor" is now called "the Spirit of truth" because he is the one who testifies about Jesus who is "the truth." This truth is the spiritual reality to which all believers are brought into: they have been united with Christ in his death and resurrection. In contrast to that, the reality of this world is not run by this truth, but in fact run by the spirit of falsehood (1 John 4:6, John 8:44). And this is the reason why "the world cannot accept him," and "it neither sees him nor knows him." But for those who have become heirs of God, he lives, remains, and is with them forever because they have been adopted into the family of the Trinity. In the same way, Jesus, as a human, was adopted into this family and received the Holy Spirit when he was baptized:

When all the people were being baptized, Jesus was baptized too. And as he was praying, heaven was opened and the Holy Spirit descended on him in bodily form like a dove. And a voice came from heaven: "You are my Son, whom I love; with you I am well pleased (Luke 3:21-22)."

Interestingly, the work of the Holy Spirit in the ministry of Jesus is figuratively illustrated through the presence of Jesus' mother in the gospel of John. The miracle of turning water into wine in chapter 2 is depicted as the first sign in Jesus' ministry, in which his mother played an indispensable role as a mediator between Jesus and the people who did not yet know much about their redeemer: she said to the servants, "Do whatever he tells you." Obviously, the water changed into wine is linked with the blood and water that gushed out of his body at the crucifixion. It was not a coincidence that this sign took place at the wedding where Jesus, his disciples and mother were present—Christ being the bridegroom and the church the bride. The mother was the backstage coordinator and hidden organizer—the Holy Spirit, whose role exactly corresponds to that of Naomi in the story of Ruth.

When Jesus saw his mother there, and the disciple whom he loved standing nearby, he said to his mother, "Dear woman, here is your son," and to the disciple, "Here is your mother." From that time on, this disciple took her into his home (John 19:26-27).

As Jesus' mother who had lived with him up to this point departed from him, she became the mother of John, and John was adopted as her son. This shows the kind of relationship that the church has with the Holy Spirit. In the others, the Holy Spirit has been given to the church as the proof that the church is the assembly of the adopted children of God—the deposit that guarantees their inheritance. And again, this corresponds to the presence of Naomi who functioned as the last link and hope that ensured that the land of her former husband could be redeemed and given to her son-in-law (adopted son) and his descendants. The church ought to honor the person of the Holy Spirit more.