Sforno on Deuteronomy 32:13/ספורנו על דברים ל״ב:י״ג

1ירכיבהו על במתי ארץ, this is something He has to do seeing that He did not achieve the desired result at the time He gave the Torah to the Jewish people at Mount Sinai. He will make a second attempt at achieving this as we know from Psalms 105,45 בעבור ישמרו חקיו, “in order that they may observe His statutes.” G’d gave them the land of nations in order that they keep His statutes.” Ezekiel 20,6 extols the land of Israel as ארץ צבי, the choicest of all the countries

2ויאכל תנובות שדי, Moses mentions only the eating, not referring to the labour in the fields leading up to this, eventually. He meant that it would not take any effort to reach the state of eating the produce the land has to offer. Compare Joshua 24,13 “vineyards and olive trees which you did not plant you are eating from.”