If I am a new creature in Christ, then I stand before God, not in myself—but in Christ. He sees no longer me—but only him in whom I am—him who represents me, Christ Jesus, my substitute and surety. In believing, I have become so identified with the Son of his love, that the favor with which he regards him passes over to me, and rests, like the sunshine of the new heavens, upon me.
In Christ, and through Christ, I have acquired a new standing before the Father. I am ‘accepted in the beloved.’
My old standing, that is, that of distance, and disfavor, and condemnation, is wholly removed, and I am brought into one of nearness, and acceptance, and pardon—I am made to occupy a new footing, just as if my old one had never been. Old guilt, heavy as the mountain, vanishes; old dread, gloomy as midnight, passes off; old fear, dark as hell, gives place to the joyful confidence arising from forgiveness and reconciliation, and the complete blotting out of sin.
All things are made new. I have changed my standing before God; and that simply in consequence of that oneness between me and Christ, which has been established, through my believing the record given concerning him. I come to him on a new footing, for I am “in Christ,” and in me there has been a new creation.
"Christ and the New Creation"