What that means is though the Son has bought it, the Spirit has actually brought it. The Son has bought it, and the Spirit has brought it. It says, for example, in John 16, Jesus says, ‘The Spirit will come and take of mine and show me to you. He will glorify me.’ The Spirit’s job is to melt you under the truth.
Back in the old days, before we had wonderful glued envelopes, do you know how you sealed an envelope if you wrote it? What you had to have is you had to have a little piece of wax, right? You had to have a seal (usually a signet ring), and you had to have a flame. So you softened the wax with the flame, and what the flame did to the wax was it made the wax susceptible to the seal.
If you tried to put the seal on the wax without the flame, there are only two things that could happen. What? It could break the wax, or it could just leave only a superficial outline on the surface. But if the wax is changed, it’s softened by the flame, then the wax is susceptible, and it’s changed in the image of the seal. Now that illustration, transform it. The wax is your heart. The seal is the Truth, the Word of God, and the flame is the Spirit.
When I go to the Truth of God, and the Spirit is giving me access, do you see what happens? You can read about the power of God. If you just read about the power of God, without the influence of Spirit, you say, ‘Oh, God is powerful.’ Without the influence of the Spirit, all that can do is make a superficial impression on the top of you, but when the Spirit of God is there, you read about the power, and there’s access. The truth begins to shine. It begins to change you, and what happens is your heart develops courage.
When you read about his goodness, it develops peace in you. When you read about his forgiveness, it develops relief in you. You shake off your guilty fears. When you read about his forgiveness, it develops generosity and mercy in you. When you read about his holiness, it develops conviction of sin and humility in you. Don’t you see? Only when the Spirit of God is doing that do you see real access happening. Only then.
– Tim Keller
*Words found in Tim Keller’s 1989 Sermon, “Christ Our House”