Baal HaSulam, Matan Torah “The Giving of the Torah,” Item 5: We must first understand why the Torah was given specifically to the Israeli nation and not to all the peoples of the world equally. Is there, God forbid, nationalism involved here? Of course, only an insane person would think that.
There is no such thing as being chosen. The qualities of total bestowal, love, connection, and kindness are collectively called the Creator. And the opposite qualities are called creation.
Gradually, creation must reach the quality of the Creator. That is, without changing inside, where the same hatred and opposition remain, it must clothe itself outside with the quality of the Creator.
Question: Is the goal of this process to give one of the nations the methodology that they must pass on to all the rest of the peoples?
Answer: Indeed, the method was given, not to one nation, but to a group of people gathered from representatives of all nations.
Question: So it wasn’t a nation relating to the same family?
Answer: It is believed that there are 70 nations in the world. Therefore, the method was given not to one nation, so that the other 69 nations would remain without it, but to representatives of all the nations gathered from those who followed Abraham on their inner inspiration.
Comment: Later, they were joined by a huge number of people.
My Response: Anyone can join them. Everything depends on the natural desire.
From KabTV’s “Systematic Analysis of the Development of the People of Israel,” 7/22/19