14But how are they to call on one in whom they have not believed? And how are they to believe in one of whom they have never heard? And how are they to hear without someone to proclaim him? 15And how are they to proclaim him unless they are sent? As it is written, “How beautiful are the feet of those who bring good news!” 16But not all have obeyed the good news; for Isaiah says, “Lord, who has believed our message?” 17So faith comes from what is heard, and what is heard comes through the word of Christ.
18But I ask, have they not heard? Indeed they have; for “Their voice has gone out to all the earth, and their words to the ends of the world.” 19Again I ask, did Israel not understand? First Moses says, “I will make you jealous of those who are not a nation; with a foolish nation I will make you angry.” 20Then Isaiah is so bold as to say, “I have been found by those who did not seek me; I have shown myself to those who did not ask for me.” 21But of Israel he says, “All day long I have held out my hands to a disobedient and contrary people.”