'Depths' in the Bible

He said: "I called out to the LORD from the midst of affliction directed at me, and he answered me. From the depths of death I cried out for help; and you heard my cry.

You threw me into the depths,into the heart of the seas,and the current overcame me.All Your breakers and Your billows swept over me.

The waters engulfed me up to the neck;the watery depths overcame me;seaweed was wrapped around my head.