Roy, no. You cannot begin with “this is not correct” and then establish that conclusion by inserting propositions that the texts themselves never state.
The issue here is context. We have to allow the words to say what they actually say, rather than supplying what we think they ought to mean.
You write that I am “introducing the assumption” that Peter’s explanation in Acts 10 concerns Jew-Gentile relations. That is not my assumption. Peter says it.
After receiving the vision, Peter enters the house of Cornelius—a Gentile—and explains what Yah had shown him:
“God hath shewed me that I should not call any man common or unclean.” — Acts 10:28
That is Peter’s interpretation of the revelation, not mine. Bible Gateway
Notice what Peter does not say. He does not say, “God has shown me that unclean animals are now clean.” He does not say, “God has abolished the dietary commandments.” He does not say, “God has abolished the appointed times.” The text identifies the application: people whom Peter had regarded as common or unclean.
You are certainly free to argue for an additional meaning, but you cannot accuse me of introducing an assumption while simultaneously introducing a meaning that Peter himself never states.
The same problem occurs with Romans 14.
You say Paul taught that Christians may regard “all days alike” and therefore Yah’s appointed times cannot remain binding. But Paul never identifies the days in Romans 14 as Yah’s appointed festivals.
Romans 14:5 describes two positions within a dispute: one person distinguishes between days; another regards the days alike. Paul then instructs the disputants concerning how they are to treat one another.
Where does Paul say:
“By ‘days’ I mean Passover, Unleavened Bread, Firstfruits, Weeks, Trumpets, Atonement and Tabernacles”?
He doesn’t.
That identification is being inserted into the passage and then used to prove the conclusion that was inserted.
Context makes the problem even more obvious. Romans 14 concerns disputes involving eating, abstaining, esteeming particular days, and judging fellow believers over those practices. Nothing in the chapter announces the repeal of Leviticus 23. Nothing identifies the appointed times as the disputed days. And nothing grants an ecclesiastical body authority to replace Yah’s calendar with another one.
If you believe Romans 14 abolishes or makes optional the appointed times, then demonstrate that proposition from Romans 14. Identify the language connecting Paul’s “days” to the appointed festivals. That is the exegetical burden. Merely asserting the connection does not establish it.
And then you appeal to Romans 11 and the Gentiles being grafted into Israel. But that passage moves in precisely the direction my argument has maintained.
Paul addresses Gentiles and describes them as a wild olive shoot grafted into the cultivated tree, sharing in its nourishing root. He immediately warns the Gentile not to boast over the natural branches: “you do not support the root, but the root supports you.” Bible Gateway
The Gentile does not replace the tree. The tree does not become Gentile. The Gentile is grafted into what was already there.
So your appeal to Romans 11 does not answer my question. It makes the question more difficult to avoid:
Where is the apostolic authorization for the grafted-in Gentiles to abolish Yah’s appointed times and replace them with a different ecclesiastical calendar?
Please identify the text.
Not an inference placed into Romans 14.
Not a meaning placed into Peter’s vision that Peter himself does not give.
The text.
If such an apostolic authorization exists, cite it and we can examine it in context. If it does not, then saying “this is not correct” does not resolve the argument.
Scripture cannot be overturned by an interpretation that first requires Scripture to say something it never actually says.