How then shall they call on him in whom they have not believed? Or how shall they believe him of whom they have not heard? And how shall they hear without a preacher? 15And how shall they preach unless they be sent, as it is written: How beautiful are the feet of them that preach the gospel of peace, of them that bring glad tidings of good things? 16But all do not obey the gospel. For Isaias saith: Lord, who hath believed our report? 17Faith then cometh by hearing; and hearing by the word of Christ. 18But I say: Have they not heard? Yes, verily: Their sound hath gone forth into all the earth: and their words unto the ends of the whole world. 19But I say: Hath not Israel known? First, Moses saith: I will provoke you to jealousy by that which is not a nation: by a foolish nation I will anger you. 20But Isaias is bold, and saith: I was found by them that did not seek me. I appeared openly to them that asked not after me. 21But to Israel he saith: All the day long have I spread my hands to a people that believeth not and contradicteth me.