New Race of Humans
[Christ] is the first of a new race of humans who share in his righteousness and holiness. He is the first of the New Age, the Head of the New Humanity, through his resurrection (compare to 1 Cor 15:45-49). By grace and faith we beĀlong to him. We too share in the new humanity. If we are in Christ, we share in the new creation (2 Cor 5:17), we are no longer "in the flesh," but "in the Spirit." The life and power of the resurrection age have already begun to make their presence felt in our life.
Sinclair Ferguson, "The Reformed View", in Donald Alexander, ed., Christian Spirituality: Five Views on Sanctification (Downers Grove, IL: IVP Academic, 1988), 59