A holy God cannot have dealings with unholy men. A holy God—and is not Christ Jesus God?—cannot have communion with unholiness, and yet you and I are unholy! How, then, does Christ receive us to his bosom? How does his Father walk with us and find himself agreed? Because he views us, not in ourselves, but in our great federal Head, the Second Adam…He looks on the deeds of Christ as ours—on his perfect obedience and sinless life as ours…We may boldly enter into that which is within the veil, where no unholy thing may come, yet where we may venture because God views us as holy in Christ Jesus.1
Charles H. Spurgeon
2 To the church of God that is in Corinth, to those sanctified in Christ Jesus, called to be saints together with all those who in every place call upon the name of our Lord Jesus Christ, both their Lord and ours: