That is frankly inaccurate and the difference btwn what Paul preached is imaginary, as shown before. To reiterate and add:
The Lord's death and resurrection go together because the former provided for the later. Under the law forgiveness was given before the atonement was made because it was done under the rubric of the atonement that would be made, and which ultimately the "the Lamb of which which taketh away the sin of the world" provided and is received by faith - as known and stated by John whom you have preaching a "kingdom gospel" (Jn. 1:29; 3:16; 5:24)
You can hold that before His death the Lord had offered Himself to Israel as their Messiah in the way that would have resulted in the kind of physical theocratic kingdom on earth that you think Peter is preaching, with its salvation, but the fact is that in foreknowledge of God Christ knew this acceptance would not happen, but instead He was to give his life a ransom for many, and which he plainly stated to the to the apostles:
Even as the Son of man came not to be ministered unto, but to minister, and to give his life a ransom for many. (Matthew 20:28)
This is why the death and resurrection of Christ precedes the forgiveness of sins, as it provides for it, consistent wit the substitutionary atonement under the Law, in which the scapegoat and sacrifice for sins was made once a year. (Lv. 16; 17:11)
Thus Peter like Paul, places the promise of forgiveness and the atonement together. As regards the alleged difference btwn the Lord Jesus and Peter versus Paul, because the former preached repentance as a condition for salvation, this is what Paul said he preached as well.
Testifying both to the Jews, and also to the Greeks, repentance toward God, and faith toward our Lord Jesus Christ. (Acts 20:21)
But shewed first unto them of Damascus, and at Jerusalem, and throughout all the coasts of Judæa, and then to the Gentiles, that they should repent and turn to God, and do works meet for repentance. (Acts 26:20)
In fact Paul is recorded as preaching repentance more, including to pagans:
And saying, Sirs, why do ye these things? We also are men of like passions with you, and preach unto you that ye should turn from these vanities unto the living God, which made heaven, and earth, and the sea, and all things that are therein: (Acts 14:15)
And the times of this ignorance God winked at; but now commandeth all men every where to repent: Because he hath appointed a day, in the which he will judge the world in righteousness by that man whom he hath ordained; whereof he hath given assurance unto all men, in that he hath raised him from the dead. (Acts 17:30-31)
And as he reasoned of righteousness, temperance, and judgment to come, Felix trembled, and answered, Go thy way for this time; when I have a convenient season, I will call for thee. (Acts 24:25)
And yet both Peter and Paul also preached salvation by believing (Acts 10:43; 16:31) But which is not a contradiction with themselves of btwn themselves, for as said, one cannot believe without repenting, and to be believe on the Lord Jesus is to repent - "repent and believe" being a reinforcement of "believe" - from unbelief to belief, and which has moral ramifications. Which is why souls reject Christ, as they intuitively know He is a threat to their lifestyle.
One comes to Christ as a contrite damned sinner who is morally destitute of any merit whereby he may escape Hell and gain eternal life with God, which is provided on God/Christ's expense and credit, and received by faith.
But to believe on the Lord Jesus for salvation from sin is to repent from unbelief to faith, and which entails changes in life. If one does not want that change, even though they are helpless of themselves to effect it, they will not come to Christ, as evil hates the Light. (cf. Jn. 3:19-21)
Moreover, in alleging the different gospels btwn what Peter preached and Paul, you are only referencing what is recorded of Peter's preaching, while going to Paul's epistles for the doctrine of the atonement, such as that we have redemption thru His blood, the forgiveness of sins. (Col. 1:14) And which you have educating Peter on.
Yet as has been shown, Peter not only preached forgiveness and the Spirit as a consequence of Christ's death and resurrection, but he was enlightened by the Lord on the new status of the Gentiles, and stated their hearts were purified by faith, (Acts 10; 15:7-9) and in writing to all (1Pt. 1:1) Peter plainly stated we are redeemed by the blood of Christ, versus the abrogated Law,
"with the precious blood of Christ, as of a lamb without blemish and without spot...(1 Peter 1:19) as
For Christ also hath once suffered for sins, the just for the unjust, that he might bring us to God, being put to death in the flesh, but quickened by the Spirit: (1 Peter 3:18) Meanwhile, the only recorded sermons by Paul also do not have him explicitly stating Christ died for our sins, so that we have redemption thru His blood, which is what is explicitly seen in both Peter and Paul's writing to Christians, but as seen above, he also calls souls to repent and turn to God for salvation, (Acts 14, 17) as this constitutes believing, while also promising justification/salvation by believing, like Peter says, on the crucified and risen Christ (not explicitly stating Christ died for our sins), as repentance is implicit in believing. (Acts 16:31; 13:39)
Thus both Peter and Paul preach Christ as Lord and Savior, and put together the death and resurrection and receiving forgiveness and acceptance with God, that "being delivered by the determinate counsel and foreknowledge of God," "Christ must needs have suffered, and risen again from the dead," , "that through this man is preached unto you the forgiveness of sins," while in writing to believers explicitly stating Christ died for our sins so that we have redemption thru His sinless blood (as does John). And both Peter's and Paul's main sermon to Jews are very similar, (Acts 2, 13) but extends to beyond just Jews.
Thus they preached the same essential gospel of salvation, and gave each other the right hand of fellowship.
2 Tim. 2:15: "STUDY to shew thyself approved unto God, a workman that needeth not to be ashamed, rightly dividing the word of truth."
Indeed, which is not done by making a division btwn the gospel of salvation preached by Peter versus Paul as being "another gospel: Which is not another." (Galatians 1:6-7) Unlike that of Rome, etc.
1 Corinthians 15:3 For I delivered unto you first of all that which I also received, how that Christ died for our sins according to the scriptures;
Hebrews 9:28 So Christ was once offered to bear the sins of many; and unto them that look for him shall he appear the second time without sin unto salvation.
Hebrews 10:12 But this man, after he had offered one sacrifice for sins for ever, sat down on the right hand of God;
Ephesians 1:7 In whom we have redemption through his blood, the forgiveness of sins, according to the riches of his grace;
I agree. We see below in Luke 4 Jesus Christ proclaiming his first Advent and what will be fulfilled. He quotes from Isaiah 61.
Luke 4: And the book of the prophet Isaiah was handed to Him. And He opened the book and found the place where it was written,
18 “The Spirit of the Lord is upon Me, Because He anointed Me to preach the gospel to the poor. He has sent Me to proclaim release to the captives, And recovery of sight to the blind, To set free those who are oppressed, 19 To proclaim the favorable year of the Lord.”
20 And He closed the book, gave it back to the attendant and sat down; and the eyes of all in the synagogue were fixed on Him. 21 And He began to say to them,“Today this Scripture has been fulfilled in your hearing.”
I believe at this point Jesus was clearly pointing out He was not the conquering Messiah that many sects were yearning for. Here is the full passage from Isaiah 61 and we see where Jesus Christ stops the reading:
The Spirit of the Lord God is upon me, Because the Lord has anointed me To bring good news to the afflicted; He has sent me to bind up the brokenhearted, To proclaim liberty to captives And freedom to prisoners; 2 To proclaim the favorable year of the Lord And the day of vengeance of our God; To comfort all who mourn, 3 To grant those who mourn in Zion, Giving them a garland instead of ashes, The oil of gladness instead of mourning, The mantle of praise instead of a spirit of fainting. So they will be called oaks of righteousness, The planting of the Lord, that He may be glorified.
4 Then they will rebuild the ancient ruins, They will raise up the former devastations; And they will repair the ruined cities, The desolations of many generations.
AMEN!! GREAT POST as usual.
Here's to your state for being the example to the nation in giving thanks to God for His bountiful blessings and His miracles to them when they arrived.