'Below' in the Bible

And God said, “Let there be an expanse [of the sky] in the midst of the waters, and let it separate the waters [below the expanse] from the waters [above the expanse].”

God made the expanse, and separated the waters which were below the expanse from the waters which were above the expanse; and it was so.

Then God said, “Let the waters below the heavens be gathered into one place, and let the dry land appear”; and it was so.

Rebekah's nurse Deborah died and was buried there, under the oak tree that was below Beth-el. That's why the place was named Allon-bacuth.

by the God of your father who helps you,and by the Almighty who blesses youwith blessings of the heavens above,blessings of the deep that lies below,and blessings of the breasts and the womb.