> Whose Definition? Yours? Your Bibles? Several religions recognize same sex couples ability to marry as do the LEGAL definitions in 9 states with more to follow.
"Marriage" is a derivative of the word "matrimony" which comes from the Latin word "mater", meaning "mother". "Motherhood" is only possible with heterosexual marriage.
As far as I'm aware, only Hinduism, Wicca and Satanism can be interpreted as supportive of gay marriage. There may be others but the list is relatively small.