LYL 83.1
(Letters to Young Lovers 83.1)
I have heard that you are intending to marry a man who is not a believer. I am unable to write you a long letter, but I will say if you take this step you depart from the plainest injunction of God’s Word and cannot expect or claim His blessing upon such a union. All the promises of God are on condition of obedience to him. (LYL 83.1) MC VC