'Call' in the Bible

As he says also in Hosea, I will call not-my-people My people; and the-not-beloved Beloved.

For there is no difference of Jew and Greek; for the same Lord of all is rich towards all that call upon him.

For every one whosoever, who shall call on the name of the Lord, shall be saved.

How then shall they call upon him in whom they have not believed? and how shall they believe on him of whom they have not heard? and how shall they hear without one who preaches?