“Given who Jesus is, we must also be led to worship, adoration, faith in Him alone, and a glad and willing submission to His Lordship in every area of our lives. In Jesus Christ, God the Son incarnate, we see the Lord of Glory, who has taken on flesh in order to become our all-sufficient Redeemer.
By sharing our common human nature, the Son of God is now able to do a work that we could never do. In His incarnation and cross work, we see the resolution of God to take upon Himself our guilt and sin in order to reverse the horrible effects of the fall and to satisfy His own righteous requirements, to make this world right, and to inaugurate a new covenant in His blood.
In Jesus Christ, we see the perfectly obedient Son taking the initiative to keep His covenant promises by taking upon himself our human nature, veiling His glory, and winning for us our eternal salvation.
Our Savior and Redeemer is utterly unique. This is why there is no salvation outside of him. He is in a category all by himself in who He is and in what He does.
In fact, because our plight is so desperate, due to sin, the only person who can save us is God’s own dear Son. It is only as the Son incarnate that our Lord can represent us; it is only as the Son incarnate that He can put away our sin, stand in our place, and turn away God’s wrath by bearing our sin.
Only Jesus can satisfy God’s own righteous requirements, because He is one with the Lord as God the Son; only Jesus can do this for us because He is truly a man and can represent us.”
—Stephen J. Wellum, God the Son Incarnate: The Doctrine of Christ (Wheaton, IL: Crossway, 2016), 442-443.