Q: Isn’t it enough to believe in Hashem? Is it necessary to believe that Judaism is the only way?
A: And the answer is, it is necessary. It’s very necessary because when we belong to the nation that received the Torah, then we are given opportunities that no one else has. You could ask the same question as follows: Isn’t it enough for a man to pull a wagon like a horse? Why should he attempt to sit in an office and do work?
We are given opportunities that no one else has
Answer is, if you’re created with different capabilities, then it’s a shame that you should be doing the work of a horse. The nations of the world were not given the benefit of a Torah, so if they believe in Hashem, it’s good for them. But we are children of that great people, so it’s our duty to utilize the Torah to see more than anyone else sees. — Happiness (#79)