Job 39:3

He is right in saying, "Have you protected the calving of the hinds?" Since flight, fear and anxiety are usual in this kind of animal, which never ceases from leaping and galloping, how, he says, can it not abort, so do you know how its young can be given birth at the right time? "Say if you have numbered the full months of their being with young, and if you have relieved their pangs. [Speak out if you] have reared their young without fear. Will you loosen their pangs?" This animal is timorous. How may its young ones, which cannot count on the speed of their legs, be devoid of fear? Who watches them? You see that nature never abandons them, neither the lion rules through its strength, nor is the hind abandoned.

And so he says, "They crouch to bring forth their young," which they bring forth, "and give birth," by themselves instructed by nature. Still giving birth is not delightful, but painful for them, and so he says, "and they bring it forth roaring," because of …

Some think it is intimated ( Ps. xxix. 9 ) that God by thunder helps the hinds in calving. Let it be observed, for the comfort of women in labour, that God helps even the hinds to bring forth their young; and shall he not much more succour them, and save them in child-bearing, who are his children in covenant with him?

They bow themselves,....

They bow themselves - literally, they curve or bend themselves; that is, they draw their limbs together. They cast out their sorrows - That is, they cast forth the offspring of their pains, or the young which cause their pains. The idea seems to be, that they do this without any of the care and attention which shepherds are obliged to show to their flocks at such seasons. They do it when God only guards them; when they are in the wilderness or on the rocks far away from the abodes of man.