'Depths of the Sea' in the Bible

The Lord said, I will bring again from Bashan, I will bring them again from the depths of the sea;

Is it not thou that driedst up the sea, the waters of the great deep; that madest the depths of the sea a way for the redeemed to pass over?

He will again have compassion upon us; he will tread our iniquities under foot; and thou wilt cast all their sins into the depths of the sea.