because God has made her forget wisdom and given her no share in understanding.
The ostrich is a wonderful animal, a very large bird, but it never flies. Some have called it a winged camel. God here gives an account of it, and observes, I. Something that it has in common with the peacock, that is, beautiful feathers (Job 39:13): Gavest thou proud wings unto the peacocks? so some read it. Fine feathers make proud birds.
Commenting on Job 39:13-18
Because God hath deprived her of wisdom,.... Or "made her to forget" (d) what she had; an instance of her forgetfulness is mentioned Job 39:15; and so Leo Africanus (e) says of it, that it is of a very short memory, and presently forgets the place where its eggs are laid; neither hath he imparted to her understanding; many instances are given of its stupidity...
wisdom--such as God gives to other animals, and to man (Job 35:11). The Arab proverb is, "foolish as an ostrich." Yet her very seeming want of wisdom is not without wise design of God, though man cannot see it; just as in the trials of the godly, which seem so unreasonable to Job, there lies hid a wise design.