>Ula said: Non-Jews [litt. Bnei Noach, the progeny of Noah] accepted upon themselves thirty mitzvot [divinely ordered laws] but they only abide by three of them: the first one is that they do not write marriage documents for male couples, the second one is that they don't sell dead [human] meat by the pound in stores and the third one is that they respect the Torah. t. Babylonian Talmud
If the concept of gay marriage is a 20th century marxist invention, what did the Jews mean by this?