Let us suppose, in the manner of some romances, that a king was betrothed to a beautiful wife, whose picture was sent to him before he himself saw her. But when she set out on her journey to him, she fell sick of some loathsome disease, such as the smallpox or leprosy.
But suppose that he knew before she came to him that she should be restored to her first primitive beauty, and that even though he knew he would be troubled by her disaster, distemper, or disease, he easily quieted himself for that little space of time in which her infirmity, though greatly disfiguring her, was to continue. For he himself would be her physician, the only one who could cure her and restore her to her first perfect beauty, which he know he could and should do. Thus he would show all love and peace toward her, even though her disease was loathsome, in full hope of her recovery.
This is the case between Christ and the church.
A Habitual Sight of Him: The Christ-centered Piety of Thomas Goodwin (Grand Rapids, MI: Reformation Heritage Books, 2009), 113
(HT: Of First Importance)