GAUDIUM ET SPES - Pope Paul VI
Pastoral Constitution on the Church in the Modern World
Second Vatican Council
http://www.ewtn.com/library/COUNCILS/v2modwor.htm
PROMULGATED BY POPE PAUL VI
DECEMBER 7, 1965
47. The well-being of the individual person and of human and Christian society is intimately linked with the healthy condition of that community produced by marriage and family. Hence Christians and all men who hold this community in high esteem sincerely rejoice in the various ways by which men today find help in fostering this community of love and perfecting its life, and by which parents are assisted in their lofty calling. Those who rejoice in such aids look for additional benefits from them and labor to bring them about.
Yet the excellence of this institution is not everywhere reflected with equal brilliance, since polygamy, the plague of divorce, so-called free love and other disfigurements have an obscuring effect.
48. The intimate partnership of married life and love has been established by the Creator and qualified by His laws, and is rooted in the jugal covenant of irrevocable personal consent. Hence by that human act whereby spouses mutually bestow and accept each other a relationship arises which by divine will and in the eyes of society too is a lasting one. For the good of the spouses and their off-springs as well as of society, the existence of the sacred bond no longer depends on human decisions alone. For, God Himself is the author of matrimony, endowed as it is with various benefits and purposes.

