The Spirit makes known the personal presence in and with the Christian and the church of the risen, reigning Saviour, the Jesus of history, who is the Christ of faith. Scripture shows . . . that since the Pentecost of Acts 2 this, essentially, is what the Spirit is doing all the time as He empowers, enables, purges, and leads generation after generation of sinners to face the reality of God. And He does it in order that Christ may be known, loved, trusted, honored and praised, which is the Spirit’s aim and purpose throughout as it is the aim and purpose of God the Father, too. This is what, in the last analysis, the Spirit’s new covenant ministry is all about. . . . The distinctive, constant, basic ministry of the Holy Spirit under the new covenant is so to mediate Christ’s presence to believers—that is, to give them the knowledge of His presence with them as their Saviour, Lord, and God—that three things keep happening:
First, personal fellowship with Jesus . . . becomes a reality of experience, even though Jesus is now not here on earth in bodily form, but is enthroned in heaven’s glory.
Second, personal transformation of character into Jesus’ likeness starts to take place as, looking to Jesus, their model, for strength, believers worship and adore Him and learn to lay out and, indeed, lay down their lives for Him and for others.
Third, the Spirit-given certainty of being loved, redeemed, and adopted through Christ into the Father’s family, so as to be “heirs of God and fellow heirs with Christ” (Romans 8:17), makes gratitude, delight, hope, and confidence—in a word, assurance-blossom in believers’ hearts.
By these phenomena of experience, Spirit-given knowledge of Christ’s presence . . . shows itself.
J. I. Packer, Keep in Step with the Spirit, 47,49