'Deep' in the Bible

“Ask a sign for yourself from the Lord your God; make it deep as Sheol or high as heaven.”

For the Lord has poured over you a spirit of deep sleep,He has shut your eyes, the prophets;And He has covered your heads, the seers.

For Topheth has long been ready,Indeed, it has been prepared for the king.He has made it deep and large,A pyre of fire with plenty of wood;The breath of the Lord, like a torrent of brimstone, sets it afire.

Was it not You who dried up the sea,The waters of the great deep;Who made the depths of the sea a pathwayFor the redeemed to cross over?

“For behold, darkness will cover the earthAnd deep darkness the peoples;But the Lord will rise upon youAnd His glory will appear upon you.