'Deep' in the Bible

Then the sailors were full of fear, every man crying to his god; and the goods in the ship were dropped out into the sea to make the weight less. But Jonah had gone down into the inmost part of the ship where he was stretched out in a deep sleep.

For you have put me down into the deep, into the heart of the sea; and the river was round about me; all your waves and your rolling waters went over me.

The waters were circling round me, even to the neck; the deep was about me; the sea-grass was twisted round my head.