I am.
I don't see that in scripture anywhere. That is something you read here on TOL. Please don't confuse TOL posts with scripture.
Your premise being wrong leads you to wrong conclusions. The Gospel given to the Jews was that the kingdom of heaven was near. That kingdom requires God to be on the throne, and it resolves sin and death. That happened with the death, burial, resurrection, and ascension, and will be complete with Jesus' return (maybe with the final judgment), but we have been given an earnest of the Holy Spirit to reign in us for now. The same gospel applies to both groups and it is about the kingdom:
Acts 28:27-31 KJV — For the heart of this people is waxed gross, and their ears are dull of hearing, and their eyes have they closed; lest they should see with their eyes, and hear with their ears, and understand with their heart, and should be converted, and I should heal them. Be it known therefore unto you, that the salvation of God is sent unto the Gentiles, and that they will hear it. And when he had said these words, the Jews departed, and had great reasoning among themselves. And Paul dwelt two whole years in his own hired house, and received all that came in unto him, Preaching the kingdom of God, and teaching those things which concern the Lord Jesus Christ, with all confidence, no man forbidding him.
Paul was teaching the kingdom of God to ALL (Jews and Gentiles) who came to see him. The Kingdom of God was NOT just for Jews. The Gospel of Grace was NOT just for Gentiles. That means that the godpel of the kingdom and the gospel of grace were the same gospel, meant for both parties. And THAT's why the Jews were so upset (and jealous) because the Gentiles were allowed into the Kingdom, without doing all of the Jewish law.
The gospel to the Jews was:
Acts 2:38
The gospel to the Gentiles was and is :
1 Corinthians 15:1-4
from Gotquestions.org
The true gospel is the good news that God saves sinners. Man is by nature sinful and separated from God with no hope of remedying that situation. But God, by His power, provided the means of man’s redemption in the death, burial and resurrection of the Savior, Jesus Christ.
The word “gospel” literally means “good news.” But to truly comprehend how good this news is, we must first understand the bad news. As a result of the fall of man in the Garden of Eden (
Genesis 3:6), every part of man—his mind, will, emotions and flesh—have been corrupted by sin. Because of man’s sinful nature, he does not and cannot seek God. He has no desire to come to God and, in fact, his mind is hostile toward God (
Romans 8:7). God has declared that man’s sin dooms him to an eternity in
hell, separated from God. It is in hell that man pays the penalty of sin against a holy and righteous God. This would be bad news indeed if there were no remedy.
But in the gospel, God, in His mercy, has provided that remedy, a substitute for us—Jesus Christ—who came to pay the penalty for our sin by His sacrifice on the cross. This is the essence of the gospel which Paul preached to the Corinthians. In
1 Corinthians 15:2-4, he explains the three elements of the gospel—the death, burial and resurrection of Christ on our behalf. Our old nature died with Christ on the cross and was buried with Him. Then we were resurrected with Him to a new life (
Romans 6:4-8). Paul tells us to “hold firmly” to this true gospel, the only one which saves. Believing in any other gospel is to believe in vain. In
Romans 1:16-17, Paul also declares that the true gospel is the “power of God for the salvation of everyone who believes” by which he means that salvation is not achieved by man’s efforts, but by the grace of God through the gift of faith (
Ephesians 2:8-9).
Because of the gospel, through the power of God, those who believe in Christ (
Romans 10:9) are not just saved from hell. We are, in fact, given a completely new nature (
2 Corinthians 5:17) with a changed heart and a new desire, will, and attitude that are manifested in good works. This is the fruit the Holy Spirit produces in us by His power. Works are never the means of salvation, but they are the proof of it (
Ephesians 2:10). Those who are saved by the power of God will always show the evidence of salvation by a changed life.