“I have been found by those who did not seek me; I have shown myself to those who did not ask for me" (v20). Paul explained that because God wanted everyone to hear the good news of salvation and have a chance to believe, preachers would have to be sent all over the world (v14-15). Just like in Isaiah’s time, we are often surprised by who accepts the message. Sometimes religious people reject it, while those on the margins, the least expected, receive it (v19-21).
God ignores our human categories (conservative/liberal, Jew/Gentile, religious/secular). Instead, “everyone who calls on the name of the Lord will be saved” (v13).