'Deep' in the Bible

Then the angel who was speaking to me told me, "Announce this: "This is what the LORD of the Heavenly Armies says: "I have a deep concern for Jerusalem, a great concern for Zion.

And as for you, because of the blood of your agreement, I have sent out your prisoners from the deep hole in which there is no water.

And they will go through the sea of Egypt, and all the deep waters of the Nile will become dry: and the pride of Assyria will be made low, and the power of Egypt will be taken away.