I have a secret to tell you guys....Jesus said go to ALL THE WORLD and preach the Gospel...The plan it to not leave anyone out.
The real issue is just to communicate the Word and let God do all the work. Without faith through Christ, nobody gets to the Father. Those who deny the SOn, do not have the Father in them. From Pentecost till the Great Tribulation, the Holy Spirit indwells all believers. Simply being of the Jewish race doesn't bring the indwelling of the Holy Spirit. Taht only happens by God for those with faith in Christ, Jew first, then the Gentile.