After the flood and through the line of Shem, Israel was called by God through the Gentile stock and then God used Israel to call the Gentiles to Himself and when Israel failed miserably, God shelved them and dispersed them and put them aside and raised up the church so that both Jew and Gentile could have salvation and Christ would become their head. The inception of the church was given to the Jew first but has been dominated by the time of the Gentiles. More Gentile missionaries have been sent into all the world to preach the gospel then any of those that are of Israel.
That is the one language of the gospel that we have in this dispensation of grace. Because of the rejection of the Messiah and the unbelief of Israel the Gentiles obtained mercy. I would say that God is no respecter of persons, of people or to even those that He has called. When the church is taken up, God will once again focus on Israel and deliver them, but they will not be part of the bride of Christ, just the guests at the marriage supper of the Lamb. Only Jew and Gentile that received Christ during the dispensation of the church will be part of the bride, unless some believe that those who were washed in the blood of the Lamb during the tribulation period are also part of the bride of Christ.