'Hear' in the Bible

But how can they call on Him they have not believed in? And how can they believe without hearing about Him? And how can they hear without a preacher?

But I ask, “Did they not hear?” Yes, they did:Their voice has gone out to all the earth,and their words to the ends of the inhabited world.

as it is written:God gave them a spirit of insensitivity,eyes that cannot seeand ears that cannot hear,to this day.