GINOLJC, to all.
Replacement Theology, or supersessionism has nothing to do with "NATURAL" Israel, and any inheritance of any LAND. but with Israel and every Nation Spiritually.
All promises are fulfilled IN "Christ" who is the HEAD of the Body the church, the PROMISED "SEED" for all NATIONS. the existence of all NATIONS is the guarantee of God, including Israel. but the SALVATION of EVERY SOUL in EVERY NATION is God's desire including Israel. 1 Timothy 2:4 "Who will have all men to be saved, and to come unto the knowledge of the truth".
when God said "ALL" men this left no one out. so here is where I'll start my discussion at.
You hit the answer on the head, when you quoted Galatians 3:16 "Now to Abraham and his seed were the promises made. He saith not, And to seeds, as of many; but as of one, And to thy seed, which is Christ". this is the KEY POINT. not seed(s) but the SEED.
understand the problem is this. Israel is a "NATION" just like any other nation. the replacement is not in a natural nation, but in religious, or Spiritual beliefs.
then you hit it again when you quoted the apostle Peter. 1 Peter 2:9 "But ye are a chosen generation, a royal priesthood, an holy nation, a peculiar people; that ye should shew forth the praises of him who hath called you out of darkness into his marvellous light".
when God spoke to the children of Israel it was the foreshadow of all PEOPLE to come, who believe, hence a "testament".
The Church that the Lord Jesus is BUILDING IS not replacing the NATION Israel, nor any other NATION, BUT including every NATION as well as Israel.
as said, the PROMISE is to ALL NATIONS, who believe. supportive scripture,
Genesis 17:1 "And when Abram was ninety years old and nine, the LORD appeared to Abram, and said unto him, I am the Almighty God; walk before me, and be thou perfect.
Genesis 17:2 "And I will make my covenant between me and thee, and will multiply thee exceedingly.
Genesis 17:3 "And Abram fell on his face: and God talked with him, saying,
Genesis 17:4 "As for me, behold, my covenant is with thee, and thou shalt be a father of many nations.
Genesis 17:5 "Neither shall thy name any more be called Abram, but thy name shall be Abraham; for a father of many nations have I made thee.
Genesis 17:6 "And I will make thee exceeding fruitful, and I will make nations of thee, and kings shall come out of thee.
Genesis 17:7 "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 17:8 "And I will give unto thee, and to thy seed after thee, the land wherein thou art a stranger, all the land of Canaan, for an everlasting possession; and I will be their God".
the seed who is Jesus is NOT JEWISH in NATION. supportive scripture,
1 Corinthians 12:12 "For as the body is one and hath many members, and all the members of that one body, being many, are one body: so also is Christ". (we can STOP right here)
1 Corinthians 12:13 "For by one Spirit are we all baptized into one body, whether we be Jews or Gentiles, whether we be bond or free; and have been all made to drink into one Spirit.
1 Corinthians 12:14 "For the body is not one member, but many".
now in this body of NATURAL JEWS and natural GENTILES, "MANY NATIONS" what make them "one?". THE ANSWER,
Galatians 3:26 "For ye are all the children of God by faith in Christ Jesus. (there's our answer)
Galatians 3:27 "For as many of you as have been baptized into Christ have put on Christ.
Galatians 3:28 "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.
THAT'S THE ANSWER, faith, Spiritually. NOT nationality.
Galatians 3:29 "And if ye be Christ's, then are ye Abraham's seed, and heirs according to the promise". the promise, and promises was MADE to all NATIONS by God, remember Israel is only the foreshadow of all NATIONS. maybe I might need to define what foreshadowing means: be a warning or indication of (a future event). not present tense as with Israel, but future event in CHRIST JESUS. foreshadowing is synonyms with, REVELATION, ARE WE SEEING IT NOW?
the only thing being REPLACED, or supersession is ONE'S beliefs or the WAY ONE THINKS. A RENEWING OF THE MIND, both Jew and gentile. not your nationality, not your gender, not your worldly status.
for the apostle Paul made it plain as to who is a JEW? the answer,
Romans 2:28 "For he is not a Jew, which is one outwardly; neither is that circumcision, which is outward in the flesh:
Romans 2:29 "But he is a Jew, which is one inwardly; and circumcision is that of the heart, in the spirit, and not in the letter; whose praise is not of men, but of God".
that answered the Jewish part, now the hot bed question on NATIONALITY. let the bible speak,
Acts 10:1 "There was a certain man in Caesarea called Cornelius, a centurion of the band called the Italian band". THIS MAN WAS A GENTILE, OR A MAN OF ANOTHER "NATION".
let'see what the apostle Peter say about man of another "NATION".
Acts 10:34 "Then Peter opened his mouth, and said, Of a truth I perceive that God is no respecter of persons:
Acts 10:35 "But in every nation he that feareth him, and worketh righteousness, is accepted with him".
HOW MANY NATIONS? But in every nation
that's clear as a bell to me. the promise of inheritance is to any who fear God and worketh righteousness.
so personally I don't believe in any Replacement Theology, or supersessionism. if any thing I believe in an incorporation Theology.
that's my view on the subject.
1Tim 2:4 means that God wishes that ALL would be saved. I always looked at it as, if God had His druthers, ALL would be saved. The rub is that, the way God has set things up, at least for us Gentiles, it's up to the individual whether he is saved or not. Universal salvation is not an option