Job 39:12-15

12It will not help you to bring in your harvest of grain. It will not take the grain to your threshing floor.

13When an ostrich is happy, it waves its wings. But it cannot use its wings to fly, as a stork can do.

14A mother ostrich leaves her eggs on the ground. She lets the sand cause them to be warm.

15She does not realize that people or wild animals might break the eggs with their feet.