I make Jews envious?

Romans 11:11-6

The key words here are: trangression, envy, riches. Paul contrasts the loss of for the Jews to the riches of the Gentiles, the benefits the Gentiles received from the rejection and hardening of the Jews to the benefits the world will receive from their awakening and acceptance.
Paul is arguing that God still has a purpose for the Jews - that his rejection of them (based on their rejection of him) is not final but that by opening the door to the Gentiles, God is hoping to arouse the envy of the Jews. I understand his argument but it seems a bit contradictory: God knows that the Gentiles being brought into the covenant will not make the Jews envious because it is God himself, according to Paul in the previous verses, who has hardened and blinded the Jews.
In this passage I see the sovereignty of God again: he is orchestrating the events of this world, including the (according to Paul, temporary) hardening of the hearts of the nation of Israel for his ultimate glory. God is at work. As far as what I should be doing because of this passage, I am humbled because I am made aware again that my being adopted in the family of God had so little to do with me and so much to do with God and his character.