Sforno on Deuteronomy 32:6/ספורנו על דברים ל״ב:ו׳

1הלה' תגמלו זאת, after G’d had planned to make you superior over all other nations, is it indeed imaginable that you would respond by frustrating His intention by desecrating His name and to thereby prevent G’d from realising His declared intention when He created man that he should reflect the image of G’d? (Genesis 1,26)

2עם נבל, a contemptible nation, repaying generosity of the most lavish kind by ingratitude.

3ולא חכם, pursuing a policy while not considering its ultimate result.

4הלא הוא אביך קנך, He is not like a natural father who had no control over the type of son he had sired, but had to leave this to chance; G’d deliberately adopted the Jewish people giving them the kind of existence that would make Him proud to be called your “owner,” and made Him look forward to achieve His aim in creating mankind through you. Had He not made you into a nation you would have remained an insignificant tribe of sorts.

5ויכוננך, He equipped you with the basic ingredients to enable you to become the precious nation He mentioned prior to the revelation at Mount Sinai.