'Deep' in the Bible

Now the earth was formless and empty, and darkness [was] over the face of the deep. And the Spirit of God [was] hovering over the surface of the waters.

And Yahweh God caused a deep sleep to fall upon the man. While he slept, he took one of his ribs, and closed up {the flesh where it had been}.

In the six hundredth year of the life of Noah, in the second month, on the seventeenth day of the month--on that day all the springs of the great deep were split open, and the windows of heaven were opened.

And the fountains of the deep and the windows of the heavens were closed, and the rain from the heavens was restrained.

And it happened, as the sun {went down}, then a deep sleep fell upon Abram and, behold, a great terrifying darkness fell upon him.

Because of the God of your father he will help you and [by] Shaddai he will bless you with the blessings of heaven above, blessings of the deep that crouches beneath, blessings of the breasts and the womb.