When they couch in their dens - Before they are capable of trusting themselves abroad.

Abide in the covert - Before they are able to hunt down the prey by running. It is a fact that the young lions, before they have acquired sufficient strength and swiftness, lie under cover, in order to surprise those animals which they have not fleetness enough to overtake in the forest; and from this circumstance the כפירים kephirim, "young lions, or lions' whelps," have their name: the root is כפר caphar, to cover or hide. See the note on Job 4:11, where six different names are given to the lion, all expressing some distinct quality or state.

Genesis 49:9 Judah is a lion's whelp: from the prey, my son, you are gone up: he stooped down, he couched as a lion, and as an old lion...

Numbers 23:24 Behold, the people shall rise up as a great lion, and lift up himself as a young lion: he shall not lie down until he eat of the prey...

Numbers 24:9 He couched, he lay down as a lion, and as a great lion: who shall stir him up? Blessed is he that blesses you...

God's Restraining Power.
(New Year's Day.) TEXT: JOB xxxviii. 11. "Hitherto shalt thou come, and no further: and here shall thy proud waves be stayed." THESE words are taken from a sublime discourse, which -- is put by the writer in the mouth of the Highest Himself, the Creator and Preserver of the world. In it He answers Job out of the whirlwind, when he had complained, though reverently and humbly, that the Lord did not allow men to find Him; that, moreover, He gave no account of His matters to them, and that therefore …
Friedrich Schleiermacher—Selected Sermons of Schleiermacher

Whether it is Proper to the Rational Nature to be Adopted?
Objection 1: It would seem that it is not proper to the rational nature to be adopted. For God is not said to be the Father of the rational creature, save by adoption. But God is called the Father even of the irrational creature, according to Job 38:28: "Who is father of the rain? Or who begot the drops of dew?" Therefore it is not proper to the rational creature to be adopted. Objection 2: Further, by reason of adoption some are called sons of God. But to be sons of God seems to be properly attributed …
Saint Thomas Aquinas—Summa Theologica

'The End of the Lord'
'Then Job answered the Lord, and said, 2. I know that Thou canst do every thing, and that no thought can he withholden from Thee. 3. Who is he that hideth counsel without knowledge? therefore have I uttered that I understood not; things too wonderful for me, which I knew not. 4. Hear, I beseech Thee, and I will speak: I will demand of Thee, and declare Thou unto me. 5. I have heard of Thee by the hearing of the ear: but now mine eye seeth Thee. 6. Wherefore I abhor myself, and repent in dust and …
Alexander Maclaren—Expositions of Holy Scripture