18 But I say, have they not heard? Yes indeed: “Their sound has gone out to all the earth, And their words to the ends of the world.”
19 But I say, did Israel not know? First Moses says: “I will provoke you to jealousy by those who are not a nation, I will move you to anger by a foolish nation.”
20 But Isaiah is very bold and says: “I was found by those who did not seek Me; I was made manifest to those who did not ask for Me.”
21 But to Israel he says: “All day long I have stretched out My hands To a disobedient and contrary people.”
In the verses above the Apostle Paul is talking about the nation of Israel's rejection of the Gospel and their denial of the message of Jesus Christ being the Messiah. We are all pretty familiar with this, Christ came and they refused him for the most part and then salvation was offered to the Gentiles and salvation has now been made available to all the world.
But what we need to realize is that through the spirit of adoption and by the Blood of Jesus Christ, we who are saved are now the Seed of Abraham also and therefore we are Jews or the Nation of Israel too. We are God's chosen people as much as anyone else.
That being said we need to beware that God will not have to say the same thing about us that he said in the verses above about Israel. We need to examine our devotion and our dedication to God and to Jesus to make sure that we are not the disobedient nation, and that God does not have to find others to replace us but instead to add to us.
It's time for us to all rededicate ourselves to our Love and devotion to God, we are his chosen people and we don't want him to have to choose another because we won't serve him.