Sforno on Exodus 16:4/ספורנו על שמות ט״ז:ד׳

1והכינו את אשר יביאו והיה משנה, not literally: “bread,” but מזון, “food.”

2למען אנסנו הילך בתורתי, if when receiving their food without effort they will take care to keep My commandments, seeing they will then not have any excuses not to. This idea has been formulated in the classic statement by our sages in the Mechilta, section ויסע chapter 2 “the Torah, as an instrument of profound study, has been given only to the generation who ate the manna.” [no other generation had so little to distract it from devoting time to Torah study. Ed.]