Mountains — Though he lives most in the water, yet he often fetches his food from the land, and from the mountains or hills, which are nigh the river Nile. Play — They not only feed securely, but sport themselves by him, being taught by experience that he is gentle and harmless.
Related Commentaries of Job 40:20
Job 40:20
20 Surely the mountains bring him forth food, where all the beasts of the field play.