[Cronos]

It wasn't an apple - apples are from Central Asia. A Fig or pomegranate would be possible or indeed anything else

And Revelation 22:18-19 talks about "this book" namely the Book of the Revelation of St. John --> don't you realize that the Bible is made up of 73 books ending with the book of the Apocalypse?

[Just mythoughts]

The Old Testament was fixed (Ezra/Nehemiah) before Christ took His flesh journey... where in Christ declared Mark 13:23 But take ye heed: behold, I have foretold you all things.

This was long before any jot or tittle of the New Testament, ever got placed on plant fibers, animal skins, or chiseled in stone.

Paul penned
1 Corinthians 10:11 11Now all these things happened unto them for examples: and they are written for our admonition, upon whom the ends of the world are come.

The Old Testament is our script ... It is being repeated...