15. And truly, in what way will they preach, unless they have been sent, just as it has been written: "How beautiful are the feet of those who evangelize peace, of those who evangelize what is good!"
16. But not all are obedient to the Gospel. For Isaiah says: "Lord, who has believed our report?"
17. Therefore, faith is from hearing, and hearing is through the Word of Christ.
18. But I say: Have they not heard? For certainly: "Their sound has gone forth throughout all the earth, and their words unto the limits of the whole world."
19. But I say: Has Israel not known? First, Moses says: "I will lead you into a rivalry with those who are not a nation; in the midst of a foolish nation, I will send you into wrath."
20. And Isaiah dares to say: "I was discovered by those who were not seeking me. I appeared openly to those who were not asking about me."
21. Then to Israel he says: "All day long I have stretched out my hands to a people who do not believe and who contradict me."