She is hardened; or, he, i.e. God, hardens her; or, she hardeneth herself. Against her young ones, i.e. against her eggs, which he calls her young ones emphatically, to aggravate her fault and folly in destroying those eggs, which, if not neglected, would have been young ones. As though they were not hers; as if they were laid by some other bird. Or, that they may not be to her, i.e. that they may be utterly lost and destroyed; or as if it were her design to destroy their very being. Her labour, to wit, in laying her egg s, is wholly lost. In vain without fear: this may be added as a further aggravation. She doth this, not because she is compelled to forsake her eggs for fear of men or beasts, but merely ont of an unnatural carelessness. Or, she is without fear, or for want of fear, to wit, of a provident fear and care about them.
Related Commentaries of Job 39:16
Job 39:16
16 She is hardened against her young ones, as though they were not hers: her labour is in vain without fear;