פּירוש אויף בראשית 9:3

לכם יהיה לאכלה SHALL BE FOOD FOR YOU — For I did not permit Adam Harishon to eat meat, but green herbs alone; but lo you — even as the green herbs that I gave the full use of to Adam Harishon — do I give everything (Sanhedrin 59b).

כירק עשב, “as if it were green grass.” Such grass had been permitted for man to eat ever since his creation. Just as some grass had never been fit to eat,though not forbidden,so some living creatures as well as fish and fowl would be permitted as food, whereas others would not because they are not suitable as such.

EVERY ‘REMES’ (MOVING THING) THAT LIVETH. This refers to cattle, beasts and fowl — and also the fish in the sea — since all of them are called “moving things,” just as it is written: Every living creature ‘haromeseth’ (that creepeth) wherewith the waters swarmed.¹⁸³Above, 1:21.