Only the Jewish people have ability to draw G-dliness below through the performance of Mitzvah’s:

As stated above, the giving of the Torah on Sinai gave the Jewish people the ability to draw down G-dliness below into this world, an accomplishment that even the forefathers were unable to properly fulfill. This ability to draw G-dliness below was only given to the Jewish people as opposed to the Gentile nations. If a gentile studies Torah or fulfills Mitzvah’s he does not draw anything down below and accomplishes nothing. It is only, and specifically, when a Jew studies Torah and performs Mitzvah’s that it has an effect above on high to draw G-dliness below.

Torah Or p. 67b