VATICAN CITY – The Vatican is digging in after gay marriage initiatives scored big wins this week in the U.S. and Europe, vowing to never stop insisting that marriage can only be between a man and a woman.

In a front-page article in Saturday’s Vatican newspaper L’Osservatore Romano, the Holy See sought to frame itself as the lone voice of courage in opposing initiatives to give same-sex couples legal recognition. In a separate Vatican Radio editorial, the pope’s spokesman asked sarcastically why gay marriage proponents don’t now push for legal recognition for polygamous couples as well.

Catholic teaching holds that homosexuals should be respected and treated with dignity but that homosexual acts are “intrinsically disordered.” The Vatican also opposes same-sex marriage, insisting on the sanctity of marriage between a man and woman as the foundation for society.