For example, worshipping G-d in the form of a man would constitute idolatry for a Jew; however, according to some sources, the Christian worship of Jesus does not constitute idolatry for non-Jews. The word "goy" means "nation," and refers to the fact that goyim are members of other nations, that is, nations other than the Children of Israel.
While non-Jews are only obligated to obey the seven commandments given to Noah, Jews are responsible for fulfilling the 613 mitzvot in the Torah, thus G-d will punish Jews for doing things that would not be a sin for non-Jews.
Although we refer to ourselves as G-d's chosen people, we do not believe that G-d chose the Jews because of any inherent superiority.
According to the Talmud (Avodah Zarah 2b), G-d offered the Torah to all the nations of the earth, and the Jews were the only ones who accepted it.
Any non-Jew who follows these laws has a place in the world to come.
The Noahic commandments are binding on all people, because all people are descended from Noah and his family.