What does the Bible say about the Holy Spirit's role in redemption?

The Holy Spirit's primary role in redemption is not to add anything to the completed work of Jesus Christ but to reveal to the people of God that His work is finished. As Jesus stated in John 16:7, it is necessary for Him to go away so that the Comforter, the Holy Spirit, can come to teach and guide believers into all truth. The Spirit indwells, comforts, and enlightens believers, affirming that the work of removing guilt and effecting reconciliation has been fully accomplished by Christ. Thus, the Spirit does not signify a continuation of Christ's redemptive work but rather entails the application of this finished work to the hearts of those whom God has chosen.