First, did he say Jewish BELIEVERS and Gentile BELIEVERS? Or did he say Jews and Gentiles?
He said both Jews and Gentiles were baptized into the Body and common sense dictates that all of them were believers.
What was done to incorporate the Body was done by his received gospel of grace, not by the already known gospel of the Kingdom.
The following words of Peter are in regard to the gospel of grace:
"Forasmuch as ye know that ye were not redeemed with corruptible things, as silver and gold, from your vain conversation received by tradition from your fathers; But with the precious blood of Christ, as of a lamb without blemish and without spot" (1 Pet.1:18-19).
Being redeemed is the heart and soul of the gospel of grace (Ro.3:24). And the following words of Peter are not in regard to the kingom gospel:
"Who his own self bare our sins in his own body on the tree, that we, being dead to sins, should live unto righteousness: by whose stripes ye were healed" (2 Pet.2:24).
In fact, J.C. O'Hair wanted nothing to do with the teaching that the epistles of Peter and James are not for this age, as witnessed by his words here:
"Peter and James and ten other apostles are going to sit on twelve thrones and judge the twelve tribes of Israel. (Matthew 19:27 and 28). But I do not agree with Christians who say that the twelve apostles were not members of the Body of Christ...I make no such foolish statement...that these Epistles of Peter and James are not for this age...I use 1 Peter 3:18 in preaching the gospel of grace as frequently as I use any other verse" [emphasis mine] (O'Hair, The Accuser of the Brethren and the Brethren Concerning Bullingerism).
Your ideas come straight from what O'Hair calls "Bullingerism," better known to us as Acts 28 Dispensationalism.
You're being obtuse. IF the Hebrew letters were written before the cutting off of Israel, then what they could have been awaiting with hope was Acts 3:21, which is not the rapture.
I never said that the Hebrew epistles were written before the setting aside of Israel. Do you think that what is found in the following verses is for the Jews who lived before Israel was set aside?:
"For there is verily an annulling of the commandment going before for the weakness and unprofitableness thereof. For the law made nothing perfect, but the bringing in of a better hope did...By so much was Jesus made a surety of a better testament" (Heb.7:18-19,22).
Cornelius Stam, the founder of the Berean Bible Society, wrote that the author of Hebrews
"exhorts them to leave, finally and fully, the religion of Judaism with its shadows, for Christianity, with its substance and reality" (Stam,
The Epistle to the Hebrews, [Berean Literature Foundation, 1991], 69).
Sir Robert Anderson wrote that
"the distinctive sin with which the Epistle deals is unbelief, and unbelief that savours of apostasy, a going back to Judaism by those who had accepted Christ as the fulfillment of that divine religion...the Epistle to the Hebrews sought to teach him that as a partaker of a heavenly calling, he had to do with heavenly realities, of which the glories of his national cult were but types and shadows...nothing but the revelation of something higher and more glorious could ever wean him from his devotion to the national religion" (Anderson,
Types in Hebrews, [Kregel Publications, 1978], p. 114,124).