I read over your paper. In it, you seem to make the argument that only fleshly Jews are partakers of the heavenly calling. However, I believe there are many scriptures that you might not have not taken into consideration.
At the time of Jesus, what remained of the 10 tribe kingdom of Israel were known as the Samaritans. As you quoted yourself:
These 12 Jesus sent out, giving them these instructions: “Do not go off into the road of the nations, and do not enter any Sa·marʹi·tan city; 6 but instead, go continually to the lost sheep of the house of Israel.”
So the Bible differentiates between 1) the lost sheep of Israel, 2) the Samaritans, and 3) the people of the nations (Greek “Ethnos”).
Thus, when Paul was trying to explain to the Christians about the heavenly hope, if he had meant the Samaritans, he certainly would have said so. As it would have been extremely confusing for him to use the word “ethnos”, which means people of other races besides Jews.
But Paul makes it very clear the new covenant included people of the nations when he also includes the Greeks in the promise, as being part of Abrahams offspring.
“You are all, in fact, sons of God through your faith in Christ Jesus. 27 For all of you who were baptized into Christ have put on Christ. 28 There is neither Jew nor Greek, there is neither slave nor freeman, there is neither male nor female, for you are all one in union with Christ Jesus. 29 Moreover, if you belong to Christ, you are really Abraham’s offspring, heirs with reference to a promise.”
In fact, Paul often uses Greeks interchangeably with the Nations, as you can see from the following scriptures.
“For there is no distinction between Jew and Greek. There is the same Lord over all, who is rich toward all those calling on him.”
1 Cor 12:12-13
“For just as the body is one but has many members, and all the members of that body, although many, are one body, so too is the Christ. 13 For by one spirit we were all baptized into one body, whether Jews or Greeks, whether slaves or free, and we were all made to drink one spirit.”
“But I do not want you to be unaware, brothers, that many times I have intended to come to you—but I have been prevented until now—in order that I might acquire some fruitage also among you just as among the rest of the nations. 14 Both to Greeks and to foreigners, both to wise and to senseless ones, I am a debtor; 15 so I am eager to declare the good news also to you there in Rome 16 For I am not ashamed of the good news; it is, in fact, God’s power for salvation to everyone having faith, to the Jew first and also to the Greek.”
Romans 2: 9-11
“There will be tribulation and distress on every person who works what is harmful, on the Jew first and also on the Greek; 10 but glory and honor and peace for everyone who works what is good, for the Jew first and also for the Greek. 11 For there is no partiality with God.”
Also, the Samaritans practiced circumcision, but in Ephesians Paul clearly identifies people of the nations with those who did not:
Therefore, remember that at one time you, people of the nations by fleshly descent, were the ones called “uncircumcision” by those called “circumcision,” which is made in the flesh by human hands. 12 At that time you were without Christ, alienated from the state of Israel, strangers to the covenants of the promise; you had no hope and were without God in the world. 13 But now in union with Christ Jesus, you who were once far off have come to be near by the blood of the Christ.”
Also, in verse 19 he conclusively identifies these uncircumcised as members of the household of God:
“So you are no longer strangers and foreigners, but you are fellow citizens of the holy ones and are members of the household of God.”
Also Titus, who Paul included as an “heir” was an uncircumcised Greek:
“Nevertheless, not even Titus, who was with me, was compelled to be circumcised, although he was a Greek.”
“He poured this spirit out richly on us through Jesus Christ our Savior, 7 so that after being declared righteous through the undeserved kindness of that one, we might become heirs according to a hope of everlasting life.”
And to top it all off, at Colossians 3, Paul conclusively shows that God’s chosen ones can come from any nationality or the race:
“And clothe yourselves with the new personality, which through accurate knowledge is being made new according to the image of the One who created it, 11 where there is neither Greek nor Jew, circumcision nor uncircumcision, foreigner, Scythʹi·an, slave, or freeman; but Christ is all things and in all. 12 Accordingly, as God’s chosen ones, holy and loved, clothe yourselves with the tender affections of compassion, kindness, humility, mildness, and patience.”
As Jehovah’s Witnesses and all Christian denominations have got this wrong over the centuries, we have been labouring over multiple interpretations of this crucial doctrine. But a truthful and accurate understanding of the New Covenant reveals massive implications regarding who is in it, who are God’s chosen people, who the 144k are and who Jesus died for. Please read my essay (PDF) at the link here: