This passage clarifies the universal extent of the gospel's call; which is radically different from Universalism which is the idea that everybody will be saved in the end!. This passage answers many very intriguing questions Is the gospel intended for all people everywhere? Does God specially prepare people to hear the gospel? Does God uniquely prepare the sower of the word? Is it alright to serve in the military? Do very good God-fearing people really need the gospel in order to be saved? Do you first have to become a Jew in order to become a Christian? What are the characteristics of an effective sower? Can God's plan be thwarted?