And along with that external, that forensic, legal restoration of our relationship comes right on its heels, and right with it, that wonderful theme of adoption, that we are declared to be children of God. Again, because we are united to God's eternal Son, we are now adoptive sons and daughters of a living God, and brothers and sisters of Jesus, the eternal Son. That would be enough, but there's more. The Holy Spirit, in applying to us what Jesus has done for us, also applies that work of our union with Christ subjectively. Paul talks about this in Romans 6, when he talks about our dying to sin and being raised to righteousness. But that's a dimension that, Paul says, now, that's going to make for a new way of living, for a new freedom from the tyranny, and the dominion of sin in our lives. Not that we'll never sin again, but we no longer need to be dominated by sin as though it were our lord. It's no longer our lord; we've died, and we've been raised with Christ. And so, the Spirit begins his lifelong, patient, quiet, relentless work of conforming us more and more to the image of Christ. That's what we call "sanctification". What a wonderful benefit that is of the gospel, of the fact that we are united to Christ by faith. And sanctification is leading to the day that we speak of as "glorification", when we will be made like Christ, when we see him at his return and are made like him in every respect. No more sin. No more guilt. No more suffering, or sorrow, or pain. And it all flows to us because we are united to Christ, by the work of the Spirit, drawing us to trust, and to rest in Jesus, and what he's done for us.
Dr. Dennis Johnson is professor emeritus of practical theology at Westminster Seminary California, where he taught from 1982 to 2018. He previously pastored Orthodox Presbyterian churches in Fair Lawn, New Jersey, and East Los Angeles, California. Dr. Johnson was Associate Pastor of New Life Presbyterian Church (PCA) in Escondido. He served as moderator of the Orthodox Presbyterian Church General Assembly and Presbytery of Southern California, moderator of the South Coast Presbytery in the Presbyterian Church in America, member of the Orthodox Presbyterian Church Committee on Christian Education, and Trustee of Covenant College.