רַ֧ק בַּאֲבֹתֶ֛יךָ חָשַׁ֥ק יְהוָ֖ה לְאַהֲבָ֣ה אוֹתָ֑ם וַיִּבְחַ֞ר בְּזַרְעָ֣ם אַחֲרֵיהֶ֗ם בָּכֶ֛ם מִכָּל־הָעַמִּ֖ים כַּיּ֥וֹם הַזֶּה׃
Only the LORD had a delight in thy fathers to love them, and He chose their seed after them, even you, above all peoples, as it is this day.
Read midrashic interpretation of Deuteronomy 10:15: and classical rabbinic exegesis.