God saves through promises/covenant. The Old Testament is Hebrew in origin and records Israel's relationship with God. The Law, the Psalms, and the Prophets - the Hebrew Bible - does not have any covenant between God and Gentiles. If you can show me a covenant between God and non-Hebrew Gentiles then you have an argument. But since there is nothing in the Hebrew Bible of a covenant or even promises of salvation for Gentiles then all your passages don't apply. Abraham has covenant with God and the terms and promises are recorded for Hebrew posterity. The children of Israel have covenant with God called the Mosaic Covenant, even the New Covenant prophesied by Jeremiah is between God and the House of Israel and the House of Judah and we see the terms of covenant described in Scripture. The Law, the Psalms, and the Prophets - the Hebrew Bible - records and DESCRIBES God's covenant with Abraham and his seed, a people later to be called the children of Israel. You can't post Scripture of covenant between God and non-Hebrews because there is none. Here, this is what a covenant looks like:
8 And God spake unto Noah, and to his sons with him, saying,
9 And I, behold, I establish my covenant with you, and with your seed after you; Genesis 9:8–9.
7 And I will establish my covenant between me and thee and thy seed after thee in their generations for an everlasting covenant, to be a God unto thee, and to thy seed after thee. Genesis 17:7.
In the Old Testament, the establishment of the covenant between God and the children of Israel is a progressive revelation, primarily centered on the events at Mount Sinai and the subsequent renewals in the plains of Moab.
From a Rabbinical and Hebraic perspective, these moments are not merely legal contracts but a formal "marriage" or Betuach between the Creator and the nation of Israel.
5 Now therefore, if ye will obey my voice indeed, and keep my covenant, then ye shall be a peculiar treasure unto me above all people: for all the earth is mine:
6 And ye shall be unto me a kingdom of priests, and an holy nation. These are the words which thou shalt speak unto the children of Israel. Exodus 19:5–6.
7 And he took the book of the covenant, and read in the audience of the people: and they said, All that the LORD hath said will we do, and be obedient.
8 And Moses took the blood, and sprinkled it on the people, and said, Behold the blood of the covenant, which the LORD hath made with you concerning all these words. Exodus 24:6–8.
10 And thou shalt cause a bullock to be brought before the tabernacle of the congregation: and Aaron and his sons shall put their hands upon the head of the bullock.
11 And thou shalt kill the bullock before the LORD, by the door of the tabernacle of the congregation.
12 And thou shalt take of the blood of the bullock, and put it upon the horns of the altar with thy finger, and pour all the blood beside the bottom of the altar.
13 And thou shalt take all the fat that covereth the inwards, and the caul that is above the liver, and the two kidneys, and the fat that is upon them, and burn them upon the altar. Exodus 29:10–13.
44 And yet for all that, when they be in the land of their enemies, I will not cast them away, neither will I abhor them, to destroy them utterly, and to break my covenant with them: for I am the LORD their God.
45 But I will for their sakes remember the covenant of their ancestors, whom I brought forth out of the land of Egypt in the sight of the heathen, that I might be their God: I am the LORD.
46 These are the statutes and judgments and laws, which the LORD made between him and the children of Israel in mount Sinai by the hand of Moses. Leviticus 26:44–46.
33 But this shall be the covenant that I will make with the house of Israel;
After those days, saith the LORD,
I will put my law in their inward parts,
And write it in their hearts;
And will be their God,
And they shall be my people.
34 And they shall teach no more every man his neighbour, and every man his brother, saying,
Know the LORD:
For they shall all know me,
From the least of them unto the greatest of them, saith the LORD:
For I will forgive their iniquity,
And I will remember their sin no more.
Jeremiah 31:33–34.
God's covenants with Israel is recorded in Hebrew Scripture, contains words describing covenant, and there are terms of covenant between God and the person or group of people such as those called the children of Israel.
There is NO COVENANT between God and Gentiles. IF GOD made covenant with Gentiles they would have their own Bible and that Bible will record and describe any covenant between God and Gentiles and most likely there will be Gentile prophets prophesying against Gentiles giving them instruction and guidance in their relationship and covenant with God BUT there is NO COVENANT between the God of Abraham and God who chose Abraham to have covenant with. A God-Gentile covenant doesn't exist! Posting Scripture about being a light or the "nations" that will worship God is NOT a covenant.
Totally false, as salvation was promised for all nations.
Wrong again.
Matt 25:31–33 When the Son of man shall come in his glory, and all the holy angels with him, then shall he sit upon the throne of his glory: And before him shall be gathered all nations: and he shall separate them one from another, as a shepherd divideth his sheep from the goats: And he shall set the sheep on his right hand, but the goats on the left.
John 10:16 And other sheep I have, which are not of this fold: them also I must bring, and they shall hear my voice; and there shall be one fold, and one shepherd.
Eph 2:11–19 Wherefore remember, that ye being in time past Gentiles in the flesh, who are called Uncircumcision by that which is called the Circumcision in the flesh made by hands; That at that time ye were without Christ, being aliens from the commonwealth of Israel, and strangers from the covenants of promise, having no hope, and without God in the world: But now in Christ Jesus ye who sometimes were far off are made nigh by the blood of Christ. For he is our peace, who hath made both one, and hath broken down the middle wall of partition between us; Having abolished in his flesh the enmity, even the law of commandments contained in ordinances; for to make in himself of twain one new man, so making peace; And that he might reconcile both unto God in one body by the cross, having slain the enmity thereby: And came and preached peace to you which were afar off, and to them that were nigh. For through him we both have access by one Spirit unto the Father. Now therefore ye are no more strangers and foreigners, but fellowcitizens with the saints, and of the household of God;
Acts 15:14 Simeon hath declared how God at the first did visit the Gentiles, to take out of them a people for his name.
Rom 11:11–24 I say then, Have they stumbled that they should fall? God forbid: but rather through their fall salvation is come unto the Gentiles, for to provoke them to jealousy. Now if the fall of them be the riches of the world, and the diminishing of them the riches of the Gentiles; how much more their fulness? For I speak to you Gentiles, inasmuch as I am the apostle of the Gentiles, I magnify mine office: If by any means I may provoke to emulation them which are my flesh, and might save some of them. For if the casting away of them be the reconciling of the world, what shall the receiving of them be, but life from the dead? For if the firstfruit be holy, the lump is also holy: and if the root be holy, so are the branches. And if some of the branches be broken off, and thou, being a wild olive tree, wert graffed in among them, and with them partakest of the root and fatness of the olive tree; Boast not against the branches. But if thou boast, thou bearest not the root, but the root thee. Thou wilt say then, The branches were broken off, that I might be graffed in. Well; because of unbelief they were broken off, and thou standest by faith. Be not highminded, but fear: For if God spared not the natural branches, take heed lest he also spare not thee. Behold therefore the goodness and severity of God: on them which fell, severity; but toward thee, goodness, if thou continue in his goodness: otherwise thou also shalt be cut off. And they also, if they abide not still in unbelief, shall be…
Acts 10:34–35 Then Peter opened his mouth, and said, Of a truth I perceive that God is no respecter of persons: But in every nation he that feareth him, and worketh righteousness, is accepted with him.
Gal 3:28–29 There is neither Jew nor Greek, there is neither bond nor free, there is neither male nor female: for ye are all one in Christ Jesus. And if ye be Christ’s, then are ye Abraham’s seed, and heirs according to the promise.
Rom 9:24–26 Even us, whom he hath called, not of the Jews only, but also of the Gentiles? As he saith also in Osee, I will call them my people, which were not my people; and her beloved, which was not beloved. And it shall come to pass, that in the place where it was said unto them, Ye are not my people; there shall they be called the children of the living God.
Isa 49:6And he said, It is a light thing that thou shouldest be my servant To raise up the tribes of Jacob, And to restore the preserved of Israel: I will also give thee for a light to the Gentiles, That thou mayest be my salvation unto the end of the earth.
Acts 13:47–48 For so hath the Lord commanded us, saying, I have set thee to be a light of the Gentiles, that thou shouldest be for salvation unto the ends of the earth. And when the Gentiles heard this, they were glad, and glorified the word of the Lord: and as many as were ordained to eternal life believed.
Eph 3:6 That the Gentiles should be fellow heirs, and of the same body, and partakers of his promise in Christ by the gospel:
Rom 15:9–12 And that the Gentiles might glorify God for his mercy; as it is written, For this cause I will confess to thee among the Gentiles, and sing unto thy name. And again he saith, Rejoice, ye Gentiles, with his people. And again, Praise the Lord, all ye Gentiles; and laud him, all ye people. And again, Esaias saith, There shall be a root of Jesse, and he that shall rise to reign over the Gentiles; in him shall the Gentiles trust.
Acts 10:34–35 And Peter opened his mouth and said, Of a truth I perceive that God is no respecter of persons: but in every nation he that feareth him, and worketh righteousness, is acceptable to him.
Acts 11:18 And when they heard these things, they held their peace, and glorified God, saying, Then to the Gentiles also hath God granted repentance unto life.
From the American Standard version
Acts 15:7–11 And when there had been much questioning, Peter rose up, and said unto them, Brethren, ye know that a good while ago God made choice among you, that by my mouth the Gentiles should hear the word of the gospel, and believe. And God, who knoweth the heart, bare them witness, giving them the Holy Spirit, even as he did unto us; and he made no distinction between us and them, cleansing their hearts by faith. Now therefore why make ye trial of God, that ye should put a yoke upon the neck of the disciples which neither our fathers nor we were able to bear? But we believe that we shall be saved through the grace of the Lord Jesus, in like manner as they.
Rom 1:16 For I am not ashamed of the gospel: for it is the power of God unto salvation to every one that believeth; to the Jew first, and also to the Greek.
Rom 10:12–13 For there is no distinction between Jew and Greek: for the same Lord is Lord of all, and is rich unto all that call upon him: for, Whosoever shall call upon the name of the Lord shall be saved.
Eph 2:11–22 Wherefore remember, that once ye, the Gentiles in the flesh, who are called Uncircumcision by that which is called Circumcision, in the flesh, made by hands; that ye were at that time separate from Christ, alienated from the commonwealth of Israel, and strangers from the covenants of the promise, having no hope and without God in the world. But now in Christ Jesus ye that once were far off are made nigh in the blood of Christ. For he is our peace, who made both one, and brake down the middle wall of partition, having abolished in his flesh the enmity, even the law of commandments contained in ordinances; that he might create in himself of the two one new man, so making peace; and might reconcile them both in one body unto God through the cross, having slain the enmity thereby: and he came and preached peace to you that were far off, and peace to them that were nigh: for through him we both have our access in one Spirit unto the Father. So then ye are no more strangers and sojourners, but ye are fellow-citizens with the saints, and of the household of God, being built upon the foundation of the apostles and prophets, Christ Jesus himself being the chief corner stone; in whom each several building, fitly framed together, groweth into a holy temple in the Lord; in whom ye also are builded together for a habitation of God in the Spirit.
Gal 3:28 There can be neither Jew nor Greek, there can be neither bond nor free, there can be no male and female; for ye all are one man in Christ Jesus.
Acts 13:46–48 And Paul and Barnabas spake out boldly, and said, It was necessary that the word of God should first be spoken to you. Seeing ye thrust it from you, and judge yourselves unworthy of eternal life, lo, we turn to the Gentiles. For so hath the Lord commanded us, saying, I have set thee for a light of the Gentiles, That thou shouldest be for salvation unto the uttermost part of the earth. And as the Gentiles heard this, they were glad, and glorified the word of God: and as many as were ordained to eternal life believed.
Isa 49:6 yea, he saith, It is too light a thing that thou shouldest be my servant to raise up the tribes of Jacob, and to restore the preserved of Israel: I will also give thee for a light to the Gentiles, that thou mayest be my salvation unto the end of the earth.
Rom 11:11–32 I say then, Did they stumble that they might fall? God forbid: but by their fall salvation is come unto the Gentiles, to provoke them to jealousy. Now if their fall is the riches of the world, and their loss the riches of the Gentiles; how much more their fulness? But I speak to you that are Gentiles. Inasmuch then as I am an apostle of Gentiles, I glorify my ministry; if by any means I may provoke to jealousy them that are my flesh, and may save some of them. For if the casting away of them is the reconciling of the world, what shall the receiving of them be, but life from the dead? And if the firstfruit is holy, so is the lump: and if the root is holy, so are the branches. But if some of the branches were broken off, and thou, being a wild olive, wast grafted in among them, and didst become partaker with them of the root of the fatness of the olive tree; glory not over the branches: but if thou gloriest, it is not thou that bearest the root, but the root thee. Thou wilt say then, Branches were broken off, that I might be grafted in. Well; by their unbelief they were broken off, and thou standest by thy faith. Be not highminded, but fear: for if God spared not the natural branches, neither will he spare thee. Behold then the goodness and severity of God: toward them that fell, severity; but toward thee, God’s goodness, if thou continue in his goodness: otherwise thou also shalt be cut off. And they also, if they continue not in their unbelief, shall be grafted in: for God is…
Eph 3:6 to wit, that the Gentiles are fellow-heirs, and fellow-members of the body, and fellow-partakers of the promise in Christ Jesus through the gospel,
Acts 28:28 Be it known therefore unto you, that this salvation of God is sent unto the Gentiles: they will also hear.
Luke 2:30–32 For mine eyes have seen thy salvation, Which thou hast prepared before the face of all peoples; A light for revelation to the Gentiles, And the glory of thy people Israel.
Isa 42:6 I, Jehovah, have called thee in righteousness, and will hold thy hand, and will keep thee, and give thee for a covenant of the people, for a light of the Gentiles;
Rom 9:24–26 even us, whom he also called, not from the Jews only, but also from the Gentiles? As he saith also in Hosea, I will call that my people, which was not my people; And her beloved, that was not beloved. And it shall be, that in the place where it was said unto them, Ye are not my people, There shall they be called sons of the living God.
Gal 2:15–16 We being Jews by nature, and not sinners of the Gentiles, yet knowing that a man is not justified by the works of the law but through faith in Jesus Christ, even we believed on Christ Jesus, that we might be justified by faith in Christ, and not by the works of the law: because by the works of the law shall no flesh be justified.
Acts 14:27 And when they were come, and had gathered the church together, they rehearsed all things that God had done with them, and that he had opened a door of faith unto the Gentiles.
Rom 15:9–12 and that the Gentiles might glorify God for his mercy; as it is written, Therefore will I give praise unto thee among the Gentiles, And sing unto thy name. And again he saith, Rejoice, ye Gentiles, with his people. And again, Praise the Lord, all ye Gentiles; And let all the peoples praise him. And again, Isaiah saith, There shall be the root of Jesse, And he that ariseth to rule over the Gentiles; On him shall the Gentiles hope.
1 Tim 2:4 who would have all men to be saved, and come to the knowledge of the truth.
Col 1:27 to whom God was pleased to make known what is the riches of the glory of this mystery among the Gentiles, which is Christ in you, the hope of glory: