Sforno on Deuteronomy 32:10/ספורנו על דברים ל״ב:י׳

1ימצאהו בארץ מדבר, in the desert He found that the heart of this nation which He considered His only share among mankind was pure and loyal, as testified to in Jeremiah 2,2 “you followed Me into the desert.”

2יסובבנהו, to Mount Sinai, as mentioned in Exodus 19,12 when G’d had said to me: והגבלת את העם סביב, “and you will fence in the people around the Mountain.”

3יבוננהו, as G’d had said to Moses in Exodus 24,12 והתורה והמצוה אשר כתבתי להורותם, “and the Torah and the commandment which I have written in order to instruct them.”

4יצרנהו, He carefully engirded them from being enslaved to other nations and from being subject to the angel of death, as we have been taught by Eyruvin 54 that the words חרות על הלוחות, are best understood as חירות על הלוחות, freedom on the Tablets, i.e. acceptance of the Torah would result in the immortality of the person observing it totally.

5כאישון עינו. Just as a man watches carefully over his eyeball after having tended it, so G’d watched over His people. G’d tried to surround the Israelites with layers of protective legislation to counter their natural tendency to be obstinate and “do their own thing.”