Eph 2:19-20
One of the most misunderstand concepts in Christendom today is the standing of the natural nation of Israel before God. Paul labors at the end of Eph 2, as he does elsewhere, to make sure the Gentiles understand that “there is no distinction between Jew and Greek, for the same Lord over all is rich to all who call upon Him.” (Rom 10:12) There are no second-class citizens in God’s kingdom! The word from the Lord to the seven churches in Asia (all Gentile churches, by the way) include seven promises to those who overcome, the last of which reads: “To him who overcomes I will grant to sit with Me on My throne, as I also overcame and sat down with My Father on His throne.” (Rev 3:21) In short, no matter what your natural lineage, if you overcome by the blood of the Lamb (see Rev 12:11), you will reign with Jesus Christ.
To that point, we must understand that no one enters this kingdom except through Jesus Christ. There is no back door designated for the Jews. Whether Jew or Gentile, you must enter through the Door of the sheep, which is Christ. (Joh 10:7-9) Jesus makes it pretty clear in Joh 14:6, “I am the way, the truth, and the life. No one comes to the Father except through Me.” Both Jews and Gentiles need to hear the same gospel, “for it is the power of God to salvation for everyone who believes, for the Jew first and also for the Greek.” (Rom 1:16) Paul continues in Rom 2 to say that, whether Jew or Gentile, if you believe in the Christ declared by the gospel and follow Him, then you get eternal life; if you reject Him and will not obey the gospel, you get the wrath of God instead. (Rom 2:6-10) Period. No further discussion. “For there is no partiality with God.” (v. 11)
How good it is to know that if I’m in Christ, “all the promises of God in Him are Yes, and in Him Amen, to the glory of God through us.” (2Co 1:20) And you weren’t an afterthought, Gentile Christian, because listen to what Paul quotes in Rom 15:10 that God said all the way back in Deu 32:43: “Rejoice, O Gentiles, with His people!” From the very beginning, God’s intent has been to save people out every nation, so let us join in song with the redeemed in Rev 5:9-10 in praise to our gracious Savior where “they sang a new song, saying: ‘You are worthy to take the scroll, and to open its seals; for You were slain, and have redeemed us to God by Your blood out of every tribe and tongue and people and nation, and have made us kings and priests to our God; and we shall reign on the earth.'”