“In order that we may not proceed as blindly, but rather conduct ourselves in a Christian manner, hold fast first of all to this, that man and woman are the work of God. Keep a tight rein on your heart and your lips; do not criticize his work, or call that evil which he himself has called good. He knows better than you yourself what is good and to your benefit, as he says in Genesis 1 [2:18], “It is not good that the man should be alone; I will make him a helper fit for him.” There you see that he calls the woman good, a helper. If you deem it otherwise, it is certainly your own fault, you neither understand nor believe God’s word and work. See, with this statement of God one stops the mouths of all those who criticize and censure marriage.
For this reason young men should be on their guard when they read pagan books and hear the common complaints about marriage, lest they inhale poison. For the estate of marriage does not set well with the devil, because it is God’s good will and work. This is why the devil has contrived to have so much shouted and written in the world against the institution of marriage, to frighten men away from this godly life and entangle them in a web of fornication and secret sins. Indeed, it seems to me that even Solomon, although he amply censures evil women, was speaking against just such blasphemers when he said in Proverbs 18[:22], “He who finds a wife finds a good thing, and obtains favor from the Lord.” What is this good thing and this favor? Let us see.
The world says of marriage, “Brief is the joy, lasting the bitterness.” Let them say what they please; what God wills and creates is bound to be a laughingstock to them. The kind of joy and pleasure they have outside of wedlock they will be most acutely aware of, I suspect, in their consciences. To recognize the estate of marriage is something quite different from merely being married. He who is married but does not recognize the estate of marriage cannot continue in wedlock without bitterness, drudgery, and anguish; he will inevitably complain and blaspheme like the pagans and blind, irrational men. But he who recognizes the estate of marriage will find therein delight, love, and joy without end; as Solomon says, “He who finds a wife finds a good thing,” etc. [Prov. 18:22]” (Luther’s Works, vol. 45, p.37).