"In your love, you see only the heaven of your own happiness, but in marriage you are placed at a post of responsibility towards the world and mankind. Your love is your own private possession, but marriage is more than something personal—it is a status, an office. Just as it is the crown, and not merely the will to rule, that makes the king, so it is marriage, and not merely your love for each other, that joins you together in the sight of God and man. As high as God is above man, so high are the sanctity, the rights, and the promise of marriage above the sanctity, the rights, and the promise of love. It is not your love that sustains the marriage, but from now on, the marriage that sustains your love."
The above is a wedding sermon written while Dietrich Bonhoeffer was in prison. It is important to note that prior to being arrested, imprisoned, and ultimately hung naked with a wire just days before Germany's surrender that Bonhoeffer was engaged to be married to Maria von Wedemeyer. They were never married.