The traditional Gospel for this Sunday from John 16:5-15 is one of the rich selections from the "Farewell Discourses." Here our Lord seeks to reassure the disciples by speaking of the Comforter, the Holy Spirit. He says, "I tell you that it is expedient for you that I go away: for if I go not away, the Comforter will not come unto you; but if I depart, I will send him unto you" (16: 7). A little later, He adds, "when he, the Spirit of truth is come, he will guide you into all truth..." (16: 13).
These verses point to the divine plan for Christ's mission. As Jesus' ordinary physical presence on earth draws to a close, His followers experience some natural human anxiety. They do not really understand much that is about to happen, and they certainly do not want to hear of His leaving. But Christ's death, resurrection, and return to heaven are good for His followers. In heaven, He will intercede for them and prepare a place for them. Furthermore, through a new outpouring of the Holy Spirit, the Comforter, Christ will continue to work among His followers in ways transcending His earthly ministry. The Spirit will guide them into truth. This truth is not some new, secret or unheard of truth, but it is the same truth already manifested in the person of Christ.The essential point of Jesus' teaching should be clear to Christians. He teaches us that the work of the Holy Spirit must not be separated from the revelation in Jesus Christ, the eternal Word of God. The work of the Spirit among Christians is a series of living applications of the truth already revealed in Christ and His Gospel. So as the Easter season winds down, and we look forward to Ascension and Pentecost, we should appreciate the unity of divine truth. The basic work of redemption in Jesus Christ was a unique time in history, but the same Christ continues to be be present and guide Christians through the work of the Holy Spirit in the Church.