This is called *Bullingerism" which is false doctrine.You're a Gentile and Gentiles have ONLY one apostle, Paul. Christ was an apostle that was sent ONLY to Israel.
'The teaching about the Jews being "formally broken off at Acts 28:28" is purely fiction. It is the false assumption upon which the whole structure of "Bullingerism" has been erected. How can anyone carefully read the book of Acts along with such passages as 1 Thessalonians 2:14-16 and Romans 11:17 and fail to see that the "natural olive branches," Israel, were broken off gradually? Paul would go into a town and preach to "Jew first" and would then pronounce the judgment of God upon the Christ-rejecting Jewish leaders in that town. After privately teaching the Jews and Gentiles who did believe his public message about the Christ spoken of by "the prophets and Moses," Paul would leave the Spirit-taught "members of the one body in Christ" (Galatians:3:27-28; Romans 12:4-5) and would go to another town to speak to "Jew first." Finally, Paul is ready to go to Rome and thus writes the Roman saints: "Now having no more place in these parts, and having a great desire these many years to come unto you, whensoever I take my journey into Spain, I will come to you." Romans 15:23-24. But when he got to Rome he did as always, preached the gospel of Christ to "Jew first." His Roman pronouncement against the Jews, Acts 28:28, was no more a "formal" setting aside of the Jews as a nation than was his declaration in Acts 13:46.'
Maurice Johnson - Why I Reject "Bullingerism"