“By taking on our humanity, Christ became the first man of the new creation, our great mediator and new covenant head. As this man, Christ reverses the work of the first Adam and forges ahead as the last Adam, our great trailblazer and champion (archégon; Heb. 2:10).
God the Son incarnate is perfectly qualified to meet our every need, especially our need for the forgiveness of sin. According to the storyline of Scripture, only the God-man—the Son incarnate—could mediate the reconciliation of God and man by offering Himself as a sinless, sufficient, substitutionary sacrifice such that God Himself redeems His people as a man (1 Tim. 2:5-6; Hebrews 5-10).
As the divine Son, Christ alone satisfies God’s own judgment upon sinful humanity and demand for perfect righteousness. As the incarnate Son, Christ alone identifies with sinful humanity in His suffering and represents a new humanity as our great and glorious Covenant Lord…
In Jesus, we truly meet God face-to-face; we meet Him, not indwelling or overshadowing human flesh, nor merely associated with it, but in full and wonderful glory.
Although we behold Him as a man, He is much more; He is the Lord, the divine Son who humbles Himself and veils His glory by becoming one with us. It is God the Son Himself who dwells among us to speak, act, live, love, rule, and redeem for our good and His glory.”
—Stephen J. Wellum, God the Son Incarnate: The Doctrine of Christ (Wheaton, IL: Crossway, 2016), 434, 435-436.