'Deep' in the Bible

Now the earth was without shape and empty, and darkness was over the surface of the watery deep, but the Spirit of God was moving over the surface of the water.

So the Lord God caused the man to fall into a deep sleep, and while he was asleep, he took part of the man's side and closed up the place with flesh.

In the six hundredth year of Noah's life, in the second month, on the seventeenth day of the month -- on that day all the fountains of the great deep burst open and the floodgates of the heavens were opened.

The fountains of the deep and the floodgates of heaven were closed, and the rain stopped falling from the sky.

because of the God of your father, who will help you, because of the sovereign God, who will bless you with blessings from the sky above, blessings from the deep that lies below, and blessings of the breasts and womb.