October 26

…the basic concept taught by Bahá'u'lláh is that the kind of sexuality purposed by God is the love between a man and a woman, and that its primary (but not its only) purpose is the bringing of children into this world and providing them with a loving and protective environment in which they can be reared to know and love God. 
(From a letter written on behalf of the Universal House of Justice to an individual believer, included in a Memorandum from the Research department of the Universal House of Justice, dated May 3, 1994)