The Gospel of the Kingdom is the Gospel that Jesus and the twelve preached while Jesus was on earth, and the twelve preached after Jesus ascended. This Gospel was to bring the Nation of Israel back to the covenant relationship with God. To get them to do away with the traditions of man and the laws they had put in place that set aside the laws of God.
The Gospel of the Grace of God is a new Gospel that was only revealed to the Apostle Paul by Jesus. This is the Gospel that explains what Jesus accomplished when He died on the Cross. In the Gospel of the Kingdom you had to repent and be Baptized for the remission of sins. In the Gospel of Grace your sins are forgiven by the Blood shed on the Cross. In the Gospel of the Kingdom there was no Redemption, Reconciliation, Sanctification, Justification. They were never preached, or offered. They couldn't be preached or offered, because the death, burial, and resurrection hadn't taken place yet.
So yes, in the new testament there are two Gospels. The Gospel of the Kingdom in the four Gospels, and the Gospel of the Grace of God that Paul preached. This is rightly dividing the truth of Gods word.
mwood,
1. Your first paragraph is true but the Mosaic law which was fulfilled by Christ had reached it's goal and had to be done away with in order for the new covenant to come in. Hebrews 8:6-7.
2. After the resurrection the KOH and the KOG was finished for Christ had already pronounced judgement in Matthew 23:37-39 and Matthew 24:1-2 that the temple would be destroyed. Both the city of Jerusalem and the temple and the nation of Israel was basically annihilated by the Romans and didn't come back as a nation till 1948.
3. The Gospel of the Grace of God as far as salvation happened at Calvary for the whole world.
4. The new covenant was offered to Israel the nation but it was in connection specifically with the physical KOH reign of which they were to be at the head of the nations (Isaiah 2:1-4; 9:6-7).
Nowhere in the bible was it prophesied that Israel would accept the Messiah. And Christ had to die for the whole world and he did.
5. The church was started with mainly jews and the jews culturally and religiously were always under the Mosaic law. The KOH and the KOG message of John the Baptist and Jesus was understood by the apostles and they still had that in mind. However, when they asked Jesus if he would restore the KOH, he said it is not for you to know the times and season of what the Father has put in his power. Even Christ didn't know for it was the father's decision.
6. The disciples didn't understand the death, and resurrection of Christ fully even when he arose. It came back to their mind of what he said at the last before it happened but he still had to expound the scriptures and prophecies in the law of Moses for them to get the big picture about salvation and what their mission was.
7. The jews knew that gentiles were to be saved by the new covenant but they basically proselyted them into Judaism under the new covenant of the finished work of Christ.
In the jewish community the leaders were having a dilemma because the message of Christ's death and resurrection was not the law of Moses of the old covenant and rocked their world.
8. The apostles still did not understand the wall of partition being torn down as far as the jew and the gentile in one body alike which was the mystery of Christ.
Peter got the vision of the clean and the unclean was to show that God was not respect of persons and jews and gentiles were on the same playing ground to come to God. This is not a part of the KOH gospel John the Baptist or Jesus preached before the cross.
9. When Paul left his ministry with the jews because they would not listen he went to the gentiles. He explained more of the picture of the Gospel of the grace of God which was the mystery of Christ of jews and gentiles in the body alike (Ephesians 3). Paul never said that he was the first one or the only one to propagate the Gospel of the grace of God concerning the mystery of Christ.
10 In verse 4 he said; Whereby, when ye read, ye may understand my knowledge in the mystery of Christ. Paul was giving his account of the knowledge in the mystery of Christ. Paul got many revelations and he waited many years before he went up to Jerusalem to confer with the apostles to be in harmony with them.
11. Verse 5 says, Which in other ages was not made known unto the sons of men, as it is now revealed unto his holy apostles and prophets by the Spirit. Paul said this mystery was shown not only to him by the Spirit but the other apostle and prophets in those days by the Spirit. There were no apostles in the old testament and the context was about the gentiles being fellow heirs and of the same body and partakers of his promise in Christ by the gospel.
12. You said the gospel of the grace of God was about being forgiven by the blood of Jesus. Jesus told the disciples at the last supper that his blood was for the remission of sins and was the new testament and this is what the disciples did after the Cross and the death and resurrection is why they got into trouble with the jewish leaders and judaizers.
So Paul didn't start with salvation of the new covenant for Calvary had already happened before he even got saved and that is what he was saved by whether it stated it directly or not at all. This is a straw man built up to prove that the KOH message was preached under the old covenant standards and not new covenant which was Jesus death and resurrection.
There is no doubt that Peter and the other apostles still had the physical KOH mindset and that shows up in his epistles but that doesn't mean that the death and resurrection message wasn't preached. That is simply not true. Acts 4:2 Being grieved that they taught the people and preached through Jesus the resurrection from the dead.
13. Yes, the KOH and the KOG message was different because it was about the position of the head of the nations promised to Israel (Isaiah 2:2-4; 9:6-7) the Davidic covenant of the kingdom and the Land according to Genesis 15 of the Abrahamic covenant and this is why Jesus said in the Sermon on the Mount, Blessed are the meek for they shall inherit the earth.
14. The KOG in its spiritual aspect; Matthew 6:33 and Luke 17:20 was accepting Christ by believing he was the Messiah John 1:31 was the reason that Christ was manifested to Israel and they had to believe he would forgive them of their sins.
15. The didn't understand the death, burial, and resurrection like we do today plainly. Matthew 16:22-23 and John 6 prove this because Jesus didn't preach directly his death and resurrection.
Luke 24: 46: And said unto them, Thus it is written and thus it behoved Christ to suffer, and to rise from the dead the third day: And that repentance and remission of sins should be preached in his name among all nations, beginning at Jerusalem.
16. The gospel of redemption concerning the substance of the sacrifice and Christ being the sacrifice was revealed in veils and prophecies is the same gospel of forgiveness of redemption from Genesis 3:16 to Calvary.
17. The difference was what form of the revelation of redemption they were given in their time to believe by faith.
18. Jesus said to the jews to believe in him and to be born again of the water and of the spirit. His death and resurrection he didn't preach in his earthly ministry but redemption still pointed to the sacrifice which was first stated in Genesis 3:15. Do you think that Adam and Eve totally understood the big picture of that prophecy? No! It was by gradual revelation that the redemptive plan of God and people in different ages were expected to believe by faith in the specific revelation they had in their time that pointed to Christ even though they didn't understand the big picture.
19. It is not true that the jews after the resurrection didn't preach the death and resurrection of Christ and when Peter got the vision the mystery of Christ was revealed and Paul bears out that the Spirit revealed to his holy apostles and not just him, though he made it much clearer to understand.
20. The four gospels are about the Kingdom Gospel and is good news about Israel's covenants being fulfilled that is not the same as the churches position in the Kingdom even though the church will be involved in the same KOH.
21. The KOG was basically the same as far as repentance and forgiveness of sins preached in Jesus name and the substance of what would be the death and resurrection of Christ.
22. The difference in the KOG in the KOH message in Christ ministry and today was that it was before the cross and they were only required to believe that Christ was the Messiah and that he would forgive their sins.
23. When the cross happened repentance and remission of sins was about Christ death and resurrection. So the gospel of the grace of God did not start with Paul, but it did start with the cross of Calvary.
24. The mystery of Christ of jews and gentiles in one body on the same playing ground was as a result of the cross but was not manifested until Peter's vision of the clean and the unclean and Paul's ministry to the gentiles which was after Peter's vision. This is rightly dividing the word. Jerry kelso