Job 39:15

And forgetteth that the foot may crush them, or that the wild beast may break them.

The inquiry about the ostrich leaving its eggs exposed to be trampled underfoot or crushed by wild animals belongs to God's series of questions from the natural world that lay bare the narrow bounds of human wisdom. The habits of a familiar creature of everyday life contain workings that finite minds cannot fully trace or explain. Such commonplace yet unfathomable details prove that mystery surrounds even the things closest at hand. Those mysteries are meant to turn attention away from speculative confidence in human understanding and toward the wisdom of God.