26 But when the Helper comes, whom I shall send to you from the Father, the Spirit of truth who proceeds from the Father, He will testify of Me. 27 And you also will bear witness, because you have been with Me from the beginning. (John 15:26–27, NKJV)
Jesus promised to send the Holy Spirit to His apostles to be a Helper, a Comforter, after He left this world (John 14:16-18). He fulfilled His promise to them (Acts 1:4-5; 2:1-4, 33). The Holy Spirit has given powerful testimony of Jesus Christ to the world. By His miraculous revelation, inspiration and confirmation, the Spirit of truth bears witness of the gospel of Christ through the apostles He empowered (Acts 1:8). The testimony borne by the Spirit of truth is not a personal impulse, feeling or revelation uniquely given as personal experiences to each individual. His testimony is the gospel He gave the apostles which they preached to the world (Jno. 14:25-26; 16:8-13). To refuse their word for a personal testimony that contradicts the Spirit’s testimony in Scripture is spiritually destructive: “how shall we escape if we neglect so great a salvation, which at the first began to be spoken by the Lord, and was confirmed to us by those who heard Him, God also bearing witness both with signs and wonders, with various miracles, and gifts of the Holy Spirit, according to His own will?” (Hebrews 2:3-4) The New Testament is the Spirit’s testimony to the world. What a comfort the Comforter has given us!