Re: Your questions, Tam...
Question 1: We could use Cornelius,
He heard and believed Peter's gospel.
Answer: Kind of.
Acts 10:40 Him God raised up the third day, and shewed him openly; 10:42 And he commanded us to testify that it is he who was ordained of God to be the Judge of quick and dead. 10:43 To him give all the prophets witness, that through his name whosoever believeth in him shall receive remission of sins. 10:44 While Peter yet spake these words, the Holy Ghost fell on all them which heard the word.
Why?
Acts 11:17 Forasmuch then as God gave them the like gift as he did unto us, who believed on the Lord Jesus Christ; what was I, that I could withstand God? 11:18 When they heard these things, they held their peace, and glorified God, saying, Then hath God also to the Gentiles granted repentance unto life.
Acts 15:7 And when there had been much disputing, Peter rose up, and said unto them, Men and brethren, ye know how that a good while ago God made choice among us, that the Gentiles by my mouth should hear the word of the gospel, and believe. 15:8 And God, which knoweth the hearts, bare them witness, giving them the Holy Ghost, even as he did unto us; 15:9 And put no difference between us and them, purifying their hearts by faith. 15:10 Now therefore why tempt ye God, to put a yoke upon the neck of the disciples, which neither our fathers nor we were able to bear? 15:11 But we believe that through the grace of the LORD Jesus Christ we shall be saved, even as they.
The "shall be" is not speaking of some future salvation. Rather; of how one is saved - not via the Law, verse 15, but through the grace of the Lord Jesus Christ.
Just as Paul preached that...
Acts 13:38 Be it known unto you therefore, men and brethren, that through this man is preached unto you the forgiveness of sins: 13:39 And by him all that believe are justified from all things, from which ye could not be justified by the law of Moses.
Peter is saying that God purified their hearts by faith; just as Peter and company had had their hearts purified by faith, and not by the works of the Law.
Galatians 2:14 But when I saw that they walked not uprightly according to the truth of the gospel, I said unto Peter before them all, If thou, being a Jew, livest after the manner of Gentiles, and not as do the Jews, why compellest thou the Gentiles to live as do the Jews? 2:15 We who are Jews by nature, and not sinners of the Gentiles, 2:16 Knowing that a man is not justified by the works of the law, but by the faith of Jesus Christ, even we have believed in Jesus Christ, that we might be justified by the faith of Christ, and not by the works of the law: for by the works of the law shall no flesh be justified.
Question 2: So if he heard Paul's gospel a year later, could he say, "I'd rather have that than what Peter preached" ?
Answer: He would not need to.
Question 3: Or could one that heard Paul and believed, but later heard Peter's gospel and believed it too, could he pick either gospel for himself since both gospels saved?
Answer: No. Each group had been saved unto each group's purpose within God's Two-Fold Purpose: Prophecy and Mystery.
Galatians 2:7 But contrariwise, when they saw that the gospel of the uncircumcision was committed unto me, as the gospel of the circumcision was unto Peter; 2:8 (For he that wrought effectually in Peter to the apostleship of the circumcision, the same was mighty in me toward the Gentiles: ) 2:9 And when James, Cephas, and John, who seemed to be pillars, perceived the grace that was given unto me, they gave to me and Barnabas the right hands of fellowship; that we should go unto the heathen, and they unto the circumcision.
Question 4: If one hears both gospels and believe both gospels, could they choose kingdom or BOC?
Answer: Same answer as 3.
Question 5: Was there a time when only Paul's gospel could save anyone, and the kingdom gospel could not?
Answer: Yes - when Peter's Prophesied aspect of the gospel of Christ - that grace Israel's Prophets did say should come, was cut off.
What their Prophesied grace was....
John 1:11 He came unto his own, and his own received him not. 1:12 But as many as received him, to them gave he power to become the sons of God, even to them that believe on his name:
1:13 Which were born, not of blood, nor of the will of the flesh, nor of the will of man, but of God. 1:16 And of his fulness have all we received, and grace for grace. 1:17 For the law was given by Moses, but grace and truth came by Jesus Christ.
1 Peter 1:23 Being born again, not of corruptible seed, but of incorruptible, by the word of God, which liveth and abideth for ever.
1 John 5:1 Whosoever believeth that Jesus is the Christ is born of God: and every one that loveth him that begat loveth him also that is begotten of him.
John 1:40 One of the two which heard John speak, and followed him, was Andrew, Simon Peter's brother. 1:41 He first findeth his own brother Simon, and saith unto him, We have found the Messias, which is, being interpreted, the Christ.
1:45 Philip findeth Nathanael, and saith unto him, We have found him, of whom Moses in the law, and the prophets, did write, Jesus of Nazareth, the son of Joseph.
1:49 Nathanael answered and saith unto him, Rabbi, thou art the Son of God; thou art the King of Israel.
Question 6: If so, was that time within the lifetime of Peter and Paul?
Answer: It was cut off with Israel's fall in Acts 7.
Acts 7:51 Ye stiffnecked and uncircumcised in heart and ears, ye do always resist the Holy Ghost: as your fathers did, so do ye. 7:52 Which of the prophets have not your fathers persecuted? and they have slain them which shewed before of the coming of the Just One; of whom ye have been now the betrayers and murderers: 7:53 Who have received the law by the disposition of angels, and have not kept it.
Romans 2:23 Thou that makest thy boast of the law, through breaking the law dishonourest thou God? 2:24 For the name of God is blasphemed among the Gentiles through you, as it is written. 2:25 For circumcision verily profiteth, if thou keep the law: but if thou be a breaker of the law, thy circumcision is made uncircumcision.
Romans 3:9 What then? are we better than they? No, in no wise: for we have before proved both Jews and Gentiles, that they are all under sin; 3:10 As it is written, There is none righteous, no, not one: 3:11 There is none that understandeth, there is none that seeketh after God.
3:19 Now we know that what things soever the law saith, it saith to them who are under the law: that every mouth may be stopped, and all the world may become guilty before God.
Romans 11:7 What then? Israel hath not obtained that which he seeketh for; but the election hath obtained it, and the rest were blinded.
11:28 As concerning the gospel, they are enemies for your sakes: but as touching the election, they are beloved for the fathers' sakes. 11:29 For the gifts and calling of God are without repentance. 11:30 For as ye in times past have not believed God, yet have now obtained mercy through their unbelief: 11:31 Even so have these also now not believed, that through your mercy they also may obtain mercy.
11:32 For God hath concluded them all in unbelief, that he might have mercy upon all.
Acts 26:16 But rise, and stand upon thy feet: for I have appeared unto thee for this purpose, to make thee a minister and a witness both of these things which thou hast seen, and of those things in the which I will appear unto thee; 26:17 Delivering thee from the people, and from the Gentiles, unto whom now I send thee, 26:18 To open their eyes, and to turn them from darkness to light, and from the power of Satan unto God, that they may receive forgiveness of sins, and inheritance among them which are sanctified by faith that is in me. 26:19 Whereupon, O king Agrippa, I was not disobedient unto the heavenly vision: 26:20 But shewed first unto them of Damascus, and at Jerusalem, and throughout all the coasts of Judaea, and then to the Gentiles, that they should repent and turn to God, and do works meet for repentance. 26:21 For these causes the Jews caught me in the temple, and went about to kill me.
1 Thessalonians 2:13 For this cause also thank we God without ceasing, because, when ye received the word of God which ye heard of us, ye received it not as the word of men, but as it is in truth, the word of God, which effectually worketh also in you that believe. 2:14 For ye, brethren, became followers of the churches of God which in Judaea are in Christ Jesus: for ye also have suffered like things of your own countrymen, even as they have of the Jews:
They became followers of those churches in the sense that they too had ended up suffering for their faith at the hands of their own fellow countrymen, just as those churches had suffered for their faith in the hands of their own fellow, but unbelieving; Jews.
2:15 Who both killed the Lord Jesus, and their own prophets, and have persecuted us; and they please not God, and are contrary to all men: 2:16 Forbidding us to speak to the Gentiles that they might be saved, to fill up their sins alway: for the wrath is come upon them to the uttermost.
See that - they continue in the same resistence of the Spirit for which God in His wrath concluded them having continued in the uncircumcision of the heart of their fathers before them.
Question 7: If one preached to someone today about Peter's gospel and they believed it, would it save them? (into the kingdom)
Answer: No.
Romans 3:21 But now the righteousness of God without the law is manifested, being witnessed by the law and the prophets; 3:22 Even the righteousness of God which is by faith of Jesus Christ unto all and upon all them that believe: for there is no difference: 3:23 For all have sinned, and come short of the glory of God; 3:24 Being justified freely by his grace through the redemption that is in Christ Jesus: 3:25 Whom God hath set forth to be a propitiation through faith in his blood, to declare his righteousness for the remission of sins that are past, through the forbearance of God; 3:26 To declare, I say, at this time his righteousness: that he might be just, and the justifier of him which believeth in Jesus.
Remember Peter's words in Acts 15 that in contrast to them; those Gentiles had not needed to submit to circhimcision and the Law?
Remember Paul's words to Peter in Galatians 2 that although they were not sinners of the Gentiles (had never been unclean because they had been circumcised and had kept the Law) they had nevertheless been found sinners?
Whereas Peter was saved as a lawkeeping Jew who had believed Moses that Jesus was the Christ - Circumcision of the heart; when that was the Dispensation - Paul was saved under the New Dispensation as a Law keeping Jew who's heart was in UNcircumcision - for his having not believed Moses that Jesus was the Christ (back when that was the Dispensation).
And the issue in the Gospel of the Kingdom is more than simply believing that Jesus was its Prophesied Christ.
There is also the issue of who that gospel was for; and all that that and its' Kingdom is about.
And that is no longer on the table til some point after the fulness of the Gentiles be come in; when Israel's Prophetic clock starts up again at some point after this age.
Anyway, that's my long wind on all this :chuckle: