13 For »every one, without exception, who calls on the name of the Lord shall be saved.«14 But how are they to call on One in whom they have not believed? And how are they to believe in One whose voice they have never heard? And how are they to hear without a preacher?15 And how are men to preach unless they have been sent to do so? As it is written, »How beautiful are the feet of those who bring glad tidings of good!«