'Deep' in the Bible

Now the earth was formless and empty. Darkness was on the surface of the deep. God's Spirit was hovering over the surface of the waters.

Yahweh God caused a deep sleep to fall on the man, and he slept; and he took one of his ribs, and closed up the flesh in its place.

In the six hundredth year of Noah's life, in the second month, on the seventeenth day of the month, on the same day all the fountains of the great deep were burst open, and the sky's windows were opened.

When the sun was going down, a deep sleep fell on Abram. Now terror and great darkness fell on him.

even by the God of your father, who will help you; by the Almighty, who will bless you, with blessings of heaven above, blessings of the deep that lies below, blessings of the breasts, and of the womb.