Concerning “You have chosen us,” there is an explanation to the question: Our sages said that the Creator wooed all the nations of the world but they would not receive it. Only the people of Israel said, “We will do and we will hear.” Thus, why do we say, “You have chosen us”?
We should interpret this in the work. It is known that man is a small world. For this reason, he himself consists of the children of Seir and the children of Paran. But only the qualities in man that say, “We will do and we will hear,” only to them the Creator chose to give the Torah, while to the rest of the desires in man, to them the Torah was not given.
This is the meaning of the prohibition to teach Torah to idol-worshippers, referring to the nations of the world within the person himself; they are forbidden to learn.
Baal HaSulam explained that wherever our sages said “forbidden,” it means “impossible.” That is, because “the Torah exists only in one who puts himself to death over it,” meaning cancels his self and wants to annul before the Creator, then the Creator gives him the Torah as a gift.
Hence, one should know that the Creator chose only the quality of Israel within man. It was only about this quality that it was said, “You have loved us and wanted us.” Therefore, when one says, “You have chosen us,” he must respect and appreciate the quality of Israel in him, and annul the rest of the desires of the nations of the world of which he is comprised.