C. F. Keil and Franz Delitzsch on Deuteronomy 10:14-15

Deu 10:14-15

This obligation the Lord had laid upon Israel by the love with which He, to whom all the heavens and the earth, with everything upon it, belong, had chosen the patriarchs and their seed out of all nations. By “the heavens of the heavens,” the idea of heaven is perfectly exhausted. This God, who might have chosen any other nation as well as Israel, or in fact all nations together, had directed His special love to Israel alone.