Hey there,
@Davy,
There is only one gospel of Jesus Christ, of course there is, but it's administration and emphasis was not always the same. It depended on those being addressed at the time. Paul's ministry was directed to both his own countrymen and to the gentiles, and throughout the Acts period Israel had prior claim.
God's Word doesn't do generalizations. Your assuming that Paul never preached to Gentiles at the start of his ministry.
Acts 11:25-26
25 Then departed Barnabas to Tarsus, for to seek Saul:
26 And when he had found him, he brought him unto Antioch. And it came to pass, that a whole year they assembled themselves with the church, and taught much people. And the disciples were called Christians first in Antioch.
KJV
That was no Jewish synagogue. That was one of the early Christian Churches, in Antioch. The doctrine that Paul only preached to Jews at the first is bogus. Acts 26:20-23 shows this even more so.
Israel did not repent, they did not acknowledge Christ as their Messiah. The Twelve had ministered as instructed from Jerusalem and out among the Jewish communities among the nations, and had experienced only rejection from the Jewish elders and rulers of the nation. It was Paul therefore who, at Acts 28, pronounced the curse of Isaiah 6 upon Israel as a nation, the mystery of Israel's blindness descended upon them, and the prophecies concerning them were placed in abeyance, yet to be realised.
God's Word doesn't do generalizations. Not all of Israel in OT times were rebellious against our Heavenly Father. Remember God told Elijah that He preserved seven thousand unto Himself? There has always been a remnant of the seed of Israel that has believed by faith like Abraham. That is who Paul was speaking of in Romans 11 about the remnant according to the election of grace.
The gospel that Abraham believed and God counted to Abraham as righteousness, is the SAME Gospel of Jesus Christ that we have believed. Apostle Paul emphatically taught this in Galatians 3 and Romans 4, Scripture which dual gospel pushers keep scooting around like scared cats.
Acts 9:15
15 But the Lord said unto him, "Go thy way: for he is a chosen vessel unto me, to bear my name before the Gentiles, and kings, and the children of Israel:"
KJV
Jesus said that is what He chose Apostle Paul for, to preach The Gospel to...
1. "the Gentiles"
2. "and kings"
3. "and the children of Israel"
Does that mean then, that there are THREE GOSPELS of Jesus Christ???
No! Of course not.
It was then that Paul, as the Lord's Prisoner, received further revelation from God concerning this present parenthetical administration, in which the church of the One Body, of which Christ is the Head, is being called out. This knowledge was hid in God until that moment, for God in His foreknowledge waited until Israel had been given opportunity to repent, and take up their divinely appointed role of Priests unto God. When they did not, it was necessary that God's plan and purpose for this dispensation be made known. To Paul alone was this revelation given, and He administered it, both in person to those who visited him, and through the epistles he wrote from prison, namely Ephesians, Philippians, Colossians, 1 & 2 Timothy, Titus and Philemon.
You really haven't proven anything such as two separate gospels, one for Israel and another for Gentiles. All you've done is try to give a little Bible history about the majority of Jews in the Apostle's day having rejected The Gospel, and an attempt to single out Paul as being the real revealer of The Gospel of Jesus Christ. That simply is not so, as Apostle Philip revealed The Gospel to Gentiles while Saul was still persecuting Christ's Church (Acts 8).
That Salvation would also go to the Gentiles was first revealed by God through His OT prophets (Isaiah 11; Isaiah 42; Isaiah 49; Isaiah 54; Isaiah 60; Isaiah 66). It's not strange that the Book of Isaiah should have so many examples of Salvation to the Gentiles, since Isaiah means 'Yah has saved'.
Apostle Peter said this to show the OT prophets who were aware, were looking for that Salvation also to the Gentiles...
1 Peter 1:10-12
10 Of which salvation the prophets have inquired and searched diligently, who prophesied of the grace that should come unto you:
11 Searching what, or what manner of time the Spirit of Christ which was in them did signify, when it testified beforehand the sufferings of Christ, and the glory that should follow.
12 Unto whom it was revealed, that not unto themselves, but unto us they did minister the things, which are now reported unto you by them that have preached the gospel unto you with the Holy Ghost sent down from heaven; which things the angels desire to look into.
KJV
Isaiah was given to prophesy of Christ's suffering in Isaiah 53. David was given to prophesy of Christ's crucifixion in Psalms 22. And at the end of John 8, our Lord Jesus said that Abraham saw His day, and was glad. Thus Apostle Paul was chosen to basically help 'seal' that Salvation among the Gentiles, to kings, and to the children of Israel, as that was prophesied of by the OT prophets. The difference with Paul's ministry was that Jesus appeared to Paul independent of the other Apostles. That's why the other Apostles doubted at first that Saul had become a Christian and had The Gospel of Jesus Christ (Acts 9). The other Apostles continued to preach The Gospel to both Jews and Gentiles alike, eventually even outside of Judea among the nations. So what Acts is showing in reality, is the Apostles preaching The Gospel to both Jews and Gentiles, and not just by Paul.
Yet another matter is the scattered 12 tribes of Israel.
SCOTTISH DECLARATION OF INDEPENDENCE:
Translation:revised version compiled by Alan Borthwick (2005) based on Sir James Fergusson The Declaration of Arbroath, 1320(1970) pp.5-11, with reference to A A M Duncan, The Nation of Scots and the Declaration of Arbroath(Historical Association pamphlet, 1970), pp.34-37 and D E R Watt (ed.) ScotichroniconVol. 7 (1996), pp.4-9.
"Most Holy Father, we know and from the chronicles and books of the ancients wefind that among other famous nations our own, the Scots, has been graced with widespread renown. It journeyed from Greater Scythia by way of the Tyrrhenian Sea and the Pillars of Hercules, and dwelt for a long course of time in Spain among the most savage peoples, but nowhere could it be subdued by any people, however barbarous. Thence it came, twelve hundred years after the people of Israel crossed the Red Sea, to its home in the west where it still lives today."
I keep having to quote Apostle Paul in Romans 9 when he was preaching to Gentile Romans, and he quoted from the Book of Hosea to them, which Hosea was originally written only... to the ten tribed house of Israel (northern kingdom after the split of 1 Kings 11).
Rom 9:24-26
24 Even us, whom he hath called, not of the Jews only, but also of the Gentiles?
25 As He saith also in Osee, 'I will call them My people, which were not My people; and her beloved, which was not beloved.
26 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.'
KJV
That in red is from Hosea 1. God gave that about the ten northern tribe kingdom of Israel. So what was Paul doing quoting that to Roman Gentiles there in Romans 9???
In Matthew 21 with the parable of the husbandmen, Jesus showed care of the symbolic vineyard would be taken from the unbelieving Jews and instead given to a 'nation' that would bear its fruit. Per Isaiah 5, that symbolic vineyard represented the ten tribed house of Israel.
Isa 5:7
7 For the vineyard of the LORD of hosts is the house of Israel, and the men of Judah His pleasant plant: and He looked for judgment, but behold oppression; for righteousness, but behold a cry.
KJV
Now for the punchline:
Do you realize what that means is... that after the unbelieving Jews rejected The Gospel, then care of the symbolic vineyard (ten tribes of Israel) would then go to another "nation" bringing forth its fruit (i.e., The Gospel). That vineyard was moved among the Gentiles, and that is how The Gospel would be preached among the MAJORITY of the "children of Israel", like Jesus said in Acts 9 that Paul was His chosen vessel to do.
How then... could there be two separate Gospels, one for Israel, and one for Gentiles? God's Word, and history, shows any such idea as two separate gospels is a falsehood, simply because the seed of Israel (probably the majority of the seed, since the ten tribes way outnumbered the Jews) was scattered among the Gentiles long before Jesus came to die on the cross.
There also is the matter of Jews having come to believe on Jesus Christ. The majority of the Jews of the southern kingdom of Judah were also scattered after their Babylon captivity, and again in 70 A.D. Many of those have dwelt among the Gentiles and have believed The Gospel, and the same Gospel preached to Gentiles is what was preached to them!