The Spirit is the quiet force behind the saving work of the Son. Yet, this unsung hero in our redemption refuses to sing about his contribution. He is fundamentally committed to singing the song of the Son (Jn 16:14). J.I. Packer gives a great illustration of this truth.
The Holy Spirit’s distinctive new covenant role, then, is to fulfill what we may call a floodlight ministry in relation to the Lord Jesus Christ. So far as this role was concerned, the Spirit ‘was not yet’ (John 7:39, literal Greek) while Jesus was on earth; only when the Father had glorified him (see John 17:5) could the Spirit’s work of making men aware of Jesus’ glory begin.
I remember walking to a church one winter evening to preach on the words ‘he shall glorify me,’ seeing the building floodlit as I turned a corner, and realizing that this was exactly the illustration my message needed.
When floodlighting is well done, the floodlights are so placed that you do not see them; you are not in fact supposed to see where the light is coming from; what you are meant to see is just the building on which the floodlights are trained.
The intended effect is to make it visible when otherwise it would not be seen for the darkness, and to maximize its dignity by throwing all its details into relief so that you see it properly. This perfectly illustrates the Spirit’s new covenant role. He is, so to speak, the hidden floodlight shining on the Savior.
Or think of it this way. It is as if the Spirit stands behind us, throwing light over our shoulder, on Jesus, who stands facing us. The Spirit’s message is never, ‘Look at me; listen to me; come to me; get to know me,’ but always ‘Look at him, and see his glory; listen to him, and hear his word; go to him, and have life; get to know him, and taste his gift of joy and peace. 
The Spirit’s divine condescension does not cease with the saving work of the Son. His humble service is ever present in the life of the church and her individual members. We could speak to his work of conviction, regeneration, guidance, comfort, empowerment, mortification, assurance and resurrection. All of these would reveal unique glimpses into God’s grace and humility.
As I mentioned in the previous post, I am interested in addressing one particular area of the Spirit’s gracious work: indwelling. The New Testament makes an absurd claim about God’s residence. After Christ’s ascension God makes his home in his people by his Spirit. The completion of God’s saving project in Christ is accompanied by a change of the Triune address.
Indwelling means that God moves beyond being with us and shocks us with the grace of being in us! If this does not capture amazing grace I am not sure what does. There are a few New Testament passages that capture the theme of indwelling. We will explore each of these texts and then work out some implications of this doctrine as we continue on in this series of posts.