'Secret' in the Bible

But if you will not hear it, my soul shall weep in secret for [your] pride; and my eye shall weep bitterly, and run down with tears, because Yahweh's flock is taken captive.

Can any hide himself in secret places so that I shall not see him? says Yahweh. Don't I fill heaven and earth? says Yahweh.

But I have made Esau bare, I have uncovered his secret places, and he shall not be able to hide himself: his seed is destroyed, and his brothers, and his neighbors; and he is no more.