14. It is much to be observed, that the Lord, tempering in His mercy the words of His Scripture, alarms us at one time with sharp excitements, comforts us at another with gentle consolations, and blends terror with comforts, and comforts with terror; in order that, while they are both tempered towards us with wonderful skill of management, we may be found neither to despair through fear, nor yet incautiously secure. For when He had pointed out in manifold expressions the cunning crafts, and the unrestrained strength of Behemoth, He immediately sets forth the coming of His Only-begotten Son our Redeemer, and teaches in what way this Behemoth is to be destroyed; in order that, having oppressed our heart by recounting his might, He might speedily alleviate our sorrow by pointing out his destruction. Therefore, after He had said, He will drink up a river, and will not wonder, and trusteth that Jordan can flow into his mouth, He immediately announces the coming of the Lord’s Incarnation, sa...
“And when he has gone up to a steep mountain, he causes joy to the quadrupeds in the deep.” This means the wild animals have raised their heads only when this animal has withdrawn to the mountains. If [God] has created these two enormous beasts, he did so in order that you might know that he may create all of them according to their own type. But God does not do so because his creation is oriented to provide what is useful to you. Notice how these beasts observe their proper laws: they haunt that part of the sea which is not navigable. But one may ask, What is their use? We ignore what is the mysterious utility of these monsters, but, if we want to take the risk of an explanation, we may say that they lead toward the knowledge of God. - "Commentary on Job 40.20"