Besides, I think that it would be interesting and helpful for us Christians to listen to a Jewish person's opinion. Particularly about Saint Paul's complex relationship with Israel. Paul contradicts himself in Romans, when he judges Jews' behavior and tradition. So I kindly invite
@Tumah to express his opinion on these passages, if he wants to.
First passage: Romans 9:30 . In this passage, Paul clearly condemns Jews because they rely on the Torah, so they believe they are righteous because of their merits (which is exactly what Jesus commands us to do in His parables, so Paul's statement about Jews is clearly anti-Christian).
Second passage: Romans 11:25 and Romans 11:28. Here Paul says that Jews, thanks to their divine election, will receive God's mercy, although they haven't believed in Jesus.
All this speculation, full of contradictions and corrections, is the result of Paul's desperate attempt to make the Old Testament match with the Gospels, as if there was a logical and historical connection. In my opinion, there is not.
Jesus has never spoken to a particular group (Jews or Pagans), letting us understand that his message is universal and that all nations of the world are equal in God's eyes.