GEN765 Although Jews do not believe in active proselytizing of non-Jews, Jews are supposed to be role models of behavior to everyone else. In this way, the non-Jews will eventually see by themselves that the moral path of Judaism is superior to all other modes of living.  Isaiah 42:6, 49:6.  This idea is encapsulated in the very first words of God to Abram, a microcosm of Jewish history.  God first promises Abraham to creates a separate nation from his progeny, then all the other nations will praise and imitate Abraham’s people and be blessed, which is the ultimate goal of Judaism and Creation.  Therefore, even though Jews do not believe in proselytizing, they are obligated to be cognizant about whether their actions sanctify God’s name or desecrate God’s name before others.  Because of the particular obligation to behave especially morally before the non-Jew, the Jew must be sensitive not to defame God, and it is far worse than even erasing a letter from the Torah.  Yevamot 79a.  It is also for this reason that stealing from a non-Jew is worse than stealing from a Jews, Toselfta Baba Kama 10:8, since stealing from a Jew violates only the prohibition against theft, while stealing from a non-Jew also violates the prohibition against desecrating God’s name.   AMJV 353-4