John Trapp on Job 40:20

Verſe 20 Surely the Mountaines bring him forth food] And food enough, though he be of an huge body. Learne we to truſt unto Gods providence for our neceſſary proviſion: the earth is the Lords, and the fulneſſe thereof. See verſe 15.

Where all the beaſts of the field play] And play they may ſecurely for him; for he is ſo far from uſing his ſword to deſtroy them, that when he is to paſſe through the herds of other beaſts or cattle, he maketh way (ſaith Pliny) with his Snout, that he may not hurt any of them, and beckneth to them therewith, as it were with his hand, that he will only paſs by them, and do them no harm.