To love them He shows that God had no particular obligation to their fathers, any more than to other persons and people, all being equally his creation, and that his choice of them out of and above all others, proceeded only from his good pleasure.
Related Commentaries of Deuteronomy 10:15
Deuteronomy 10:15
15 Only the LORD had a delight in thy fathers to love them, and he chose their seed after them, even you above all people, as it is this day.