'Depths' in the Bible

By his knowledge the depths are broken up, and the clouds drop down the dew.

When there were no depths, I was brought forth; when there were no fountains abounding with water.

when he made the clouds from above, when the springs of the depths were established,

But he knoweth not that the dead are there; and that her guests are in the depths of hell.

The [chosen] path of life leads upward for the wise,That he may keep away from Sheol (the nether world, the place of the dead) below.