Another gem from the writings of Dr. J.I. Packer. This one is from his book Growing in Christ (Crossway, 1996), page 120:
God’s eternal Son became Jesus the Christ by incarnation; to put away our sins he tasted death by crucifixion; he resumed bodily life for all eternity by resurrection; and he reentered heaven’s glory by ascension. This is the Christ-event. It is truly historical, for it happened in Palestine 2,000 years ago. Equally true, however, it is trans-historical, in the sense of not being bounded by space and time as other events are: it can touch and involve in itself any person at any time anywhere. Faith in Jesus occasions that involving touch, so that in terms of rock-bottom reality every believer has actually died and risen, and now lives and reigns, with Jesus and through Jesus. This is the new creation aspect of our link with Jesus. …. The way to express it is that in the Jesus to whom we go in faith the power of the whole Christ-event resides, and that in saving us he not only sets us right with God, but also, so to speak, plugs us in to his own dying, rising, and reigning. Thus we live in joyful fellowship with him, knowing ourselves justified by faith through his death, and finding therewith freedom from sin’s tyranny and foretastes of heaven on earth through the transforming power within us that his dying and rising exerts. This is an over-short statement of an overwhelming truth.
The magnitude of Christ’s work is mind-numbing. And the thought that I am now “plugged in” to his completed work causes me to marvel at God’s grace!