The basis of the Jewish nation is not an ethnic but rather an ideological basis. We have to start from way back, ages ago, when humanity was concentrated in ancient Babylon and people lived a simple life but in brotherhood. However, there came a time when conflicts broke out, and neighbors who used to be close and friendly began to feel suspicious of one another and gradually became strangers.
Imagine this situation in the perspective of our time: the neighbor’s grass is greener; he has a modern washing machine, and yesterday I saw a new refrigerator being delivered to his home. His wife is like a thorn in my wife’s eyes since she wears a new dress every day, his children are disrespectful, and what is more, he now has two new pure bred dogs who openly look down at my mutt with contempt…
In short, the ego grew in ancient Babylon and people ceased to feel themselves as one nation. It is as if they began to speak different languages.
Then Abraham, who was a great sage, discovered the inner essence of what was going on and found a true solution to the conflict. He discovered that they had to overcome the ego that had grown in order to maintain the warm and friendly relations between them.
But the majority didn’t accept that approach and it ended in a general break up. The tribes and peoples scattered all over the globe.
Very few followed Abraham and they were the ones who laid the foundations for the Jewish nation and the Jewish people. They established a society that despite the continuously growing ego, kept the feeling of closeness to one another and the warm family relations between them.