Luther had been married for almost four years when he wrote the Large Catechism. His former life as a monk makes his comments on the Sixth Commandment all the more interesting and powerful. Luther keenly discerns that chastity is not a matter of vowing to live a celibate life, but of honoring God and one's spouse with one's whole being: thoughts, words, and actions. Marriage should be cherished and honored as a divine estate. God created this institution before all others and blessed it above all the rest; and since he brings children into the world through it, he provides all other estates for its support and benefit. Luther condemns forced celibacy within the Roman Church, but recognizes that God does exempt some from married life, either because they are unsuited to it or because they possess the supernatural gift of chastity. For Luther, God intended marriage not only to prevent sin, but also as a means by which husbands and wives love and cherish each other. Marriage is a precious good work far superior to the contrived spiritual estates of monks and nuns.