The Sixth Commandment.
Now, I speak of this in order that the young may be so guided that they conceive a liking for the married estate, and know that it is a blessed estate and pleasing to God. For in this way we might in the course of time bring it about that married life be restored to honor, and that there might be less of the filthy, dissolute, disorderly doings which now run riot the world over in open prostitution and other shameful vices arising from disregard of married life. Therefore it is the duty of parents and the government to see to it that our youth be brought up to discipline and respectability, and when they have come to years of maturity, to provide for them [to have them married] in the fear of God and honorably; He would not fail to add His blessing and grace, so that men would have joy and happiness from the same.
Let me now say in conclusion that this commandment demands not only that every one live chastely in thought, word, and deed in his condition, that is, especially in the estate of matrimony, but also that every one love and esteem the spouse given him by God. For where conjugal chastity is to be maintained, man and wife must by all means live together in love and harmony, that one may cherish the other from the heart and with entire fidelity.
For that is one of the principal points which enkindle love and desire of chastity, so that, where this is found, chastity will follow as a matter of course without any command.
Therefore also St. Paul so diligently exhorts husband and wife to love and honor one another.
Here you have again a precious, yea, many and great good works, of which you can joyfully boast, against all ecclesiastical estates, chosen without God's Word and commandment.