Alright starting with this theory.. i just wanna say that im Brazilian and some of my proofs will be in Portuguese cause i was no able to find the English Version of it so if you don't understand something im really sorry..i will try to translate every proof that is in Portuguese.
Theory: What’s the One Piece Treasure?
I started with this theory when Kozuki Oden said: Open Wano when JoyBoy comes back.
When I did think about it I just guessed that would be an exact reference of Jesus coming back to earth, so JoyBoy would be Jesus in One Piece because even both names start with the letter J.
I believe that One Piece was first based in the Bible. Using my proof, let’s remember the scene where Gol D. Roger finds the One Piece. He finds it along with your nakamas and cries-laughing etc, and wishes that he could live in the same era of JoyBoy.
I was searching on the internet and found out that a specific part of the Bible Gospel of Thomas, part 109: Basically the name is The hidden treasure of Jesus or the Parable of hidden treasure.
Font: https://www.marquette.edu/maqom/Gospel of Thomas Lambdin.pdf
I saw that the part when the man finds the hidden treasure is similar to what Gol D. Roger does.
I found another part of the Bible that makes more sense:
Matthew 13:44 shows that the certain man “joys” when finds the hidden treasure, so he finds the hidden treasure and keeps it hidden, like what Roger did, that's what happened in that scene of One Piece. Also an extra thing that of course “joys” just looks like JoyBoy.
This part I don't know how to explain but Matthew 13:44 in portuguese is kinda different because in the final it says that the negotiator finds for pearls. From what i think is that JoyBoy is the negotiator and the pearls would be the ones that follow the Straw Hat.
What I can show about the precious pearls is this: It’s a site of New Jerusalem and I can't find the same one but in English but I can translate it.
Font: https://pt.wikipedia.org/wiki/Nova_Jerusalém (Portuguese)
This same site shows an specific part that says: “João compara a cidade a uma noiva arrumada para seu marido.” (Portuguese)
That would mean like “John compares the city as a bride arranged for the husband.”
This would be that the Bride is Boa Hancock and Husband is Luffy.
The Straw Hats and some other One Piece Characters would be based on the Apostles:
Font: https://pt.wikipedia.org/wiki/Apóstolo (Portuguese)
The last but one Apostle is a theologian one of the parts that a theologian can focus on is studying sacred codes and texts and later on in the final part there's a rumor that he throws himself in boiling oil and survives, then from what i got this, this character would be Kozuki Oden.
Because of the theologian, the person most affected by Jesus, he was thrown in a boiling oil cauldron and also says that he wrote his last book, Basically the same thing when Oden writes a Book. There's a small chance that Oden didn’t die and his Spiritual form has a presence and he only dies when JoyBoy finally appears.
Also this is a hard one to believe but Toki would be based on the mother of Jesus, so she would be the mother of JoyBoy.
Font: https://pt.wikipedia.org/wiki/Maria_(mãe_de_Jesus)#Ligações_externas (Portuguese)
This shows that “Maria” had appearings over the world that what people say and of course this happens with Toki for example when she suddenly appeared on the Beach.
To confirm this theory Oden’s Book would be based on the Book of Revelation from the Bible.
Font: https://en.wikipedia.org/wiki/Book_of_Revelation
This Book, basically says that there’s an 7 headed dragon, a serpent and a beast, if you think about it, it kinda happens in Wano.
Font: https://en.wikipedia.org/wiki/The_Beast_(Revelation)
So I finished the theory that One Piece would be the Kingdom of Heavy or New Jerusalem.
So what Roger saw would be exactly maybe a gate that only opens with the Heaven Keys and on there would be written JoyBoy’s Kingdom that basically who would own these Keys or only one Key would be a disciple of JoyBoy also it could be a Mugiwara.
Font: https://pt.wikipedia.org/wiki/Chaves_do_Céu (Portuguese)
The twelve names written in each door of the Kingdom would be each Mugiwara.
Alright this is it my One Piece Treasure. If you don't wanna look more you can just leave. But i posted more of my theories and even proofs that One Piece is based in the Bible down here.
Theory: How Oden would come back.
So when Oden gets back would be inspired in the folklore japanese character called Susanoo no Mikoto when he slays the 8 headed beast, basically the story says that Susanoo would disguise himself as a old man and he would get close to the beast offering him alcoholic drinks, so the beast would drink it and get drunk, so Susanoo would show up and he prepares to fight and kills the Beast.
This would make sense because the reason that Oden lost the fight was because of an old person, so this would be interesting if Kaido loses because of an old man. With this Oden would have his revenge then later on Oden would die natural, with an random theory that Toki awakened her fruit and she was able to send Oden to the future but she wouldn’t remove the Oden present so basically she made 2 Odens, one that died and other that was sent into the future. But this would take the risk that Oden would have only 8 hours of lifespan.
(Big Proof that One Piece can really be based in Bible) Luffy and Boa Hancock
When Luffy and the Mugiwaras find One Piece they would open the Kingdom and meet with JoyBoy?, so there’s an part which Jesus arranges a forced bride for the Lamb, Lamb would be Luffy cause in english of course when he was a kid, people used to call him “Little Lamb” and the Bride would be Boa Hancock, because Luffy is from Brazil and the Woman’s Island was inspired in a city from Brazil called Noiva do Cordeiro that is only inhabited women's only and is also a famous known city in the whole world.
The Lamb is basically the saviour of humanity in the Bible. and Bride.. im not sure but it's not a person but we would refer it as the Bride would be the people that gets saved by the Lamb.
Font: https://epoca.oglobo.globo.com/vida...o-cordeirob-terra-das-mulheres-solteiras.html (Portuguese)
Theory: The Entrance of One Piece
Luffy would be the Lamb and this part shows that “The wall would rest over twelve foundations.
foundation would mean “support” This would be that the mugiwaras support the “Lamb” to accomplish his objective.
Font:https://www.biblegateway.com/passage/?search=Apocalipse 21&version=OL (Portuguese)
Theory: What would be the meaning of Straw Hat?
The Straw Hat would be a replacement of the Cross, like how Jesus has a Cross, Joyboy has his Straw Hat.
Maybe this would be that the Mugiwaras believe in Luffy and Luffy gets his “cross” and the Mugiwaras will follow him. This would be a modification of Oda.
Font: https://www.infoescola.com/biblia/livro-da-vida-do-cordeiro/ (Portuguese)
Theory: The God Fruits
This theory that I made is that one of the treasures inside of One Piece is the Tree of Life that would give you “Kami no mi” and would remove your Akuma no Mi powers that you have? Or maybe It could be improved.
I would say this theory because Akuma no mi could be “sins” and to enter One Piece would be a person without sins like how it says in the Bible. Also an extra is that in One Piece there's no darkness and no shadow/dark. So this would be that the Black Beard would never touch One Piece because it’s immune to darkness and One Piece would always glow.
IN THIS IMAGE SAYS: In the middle of your plaza, between a river, theres the Tree of Life, that produces twelve fruits, giving your fruit month per month and the tree's leaves is for the cure of the people.
Theory: What’s the One Piece Treasure?
I started with this theory when Kozuki Oden said: Open Wano when JoyBoy comes back.
When I did think about it I just guessed that would be an exact reference of Jesus coming back to earth, so JoyBoy would be Jesus in One Piece because even both names start with the letter J.
I believe that One Piece was first based in the Bible. Using my proof, let’s remember the scene where Gol D. Roger finds the One Piece. He finds it along with your nakamas and cries-laughing etc, and wishes that he could live in the same era of JoyBoy.
I was searching on the internet and found out that a specific part of the Bible Gospel of Thomas, part 109: Basically the name is The hidden treasure of Jesus or the Parable of hidden treasure.

Font: https://www.marquette.edu/maqom/Gospel of Thomas Lambdin.pdf
I saw that the part when the man finds the hidden treasure is similar to what Gol D. Roger does.
I found another part of the Bible that makes more sense:

Matthew 13:44 shows that the certain man “joys” when finds the hidden treasure, so he finds the hidden treasure and keeps it hidden, like what Roger did, that's what happened in that scene of One Piece. Also an extra thing that of course “joys” just looks like JoyBoy.
This part I don't know how to explain but Matthew 13:44 in portuguese is kinda different because in the final it says that the negotiator finds for pearls. From what i think is that JoyBoy is the negotiator and the pearls would be the ones that follow the Straw Hat.
What I can show about the precious pearls is this: It’s a site of New Jerusalem and I can't find the same one but in English but I can translate it.
Font: https://pt.wikipedia.org/wiki/Nova_Jerusalém (Portuguese)
This same site shows an specific part that says: “João compara a cidade a uma noiva arrumada para seu marido.” (Portuguese)
That would mean like “John compares the city as a bride arranged for the husband.”
This would be that the Bride is Boa Hancock and Husband is Luffy.
The Straw Hats and some other One Piece Characters would be based on the Apostles:
Font: https://pt.wikipedia.org/wiki/Apóstolo (Portuguese)
The last but one Apostle is a theologian one of the parts that a theologian can focus on is studying sacred codes and texts and later on in the final part there's a rumor that he throws himself in boiling oil and survives, then from what i got this, this character would be Kozuki Oden.

Because of the theologian, the person most affected by Jesus, he was thrown in a boiling oil cauldron and also says that he wrote his last book, Basically the same thing when Oden writes a Book. There's a small chance that Oden didn’t die and his Spiritual form has a presence and he only dies when JoyBoy finally appears.
Also this is a hard one to believe but Toki would be based on the mother of Jesus, so she would be the mother of JoyBoy.
Font: https://pt.wikipedia.org/wiki/Maria_(mãe_de_Jesus)#Ligações_externas (Portuguese)
This shows that “Maria” had appearings over the world that what people say and of course this happens with Toki for example when she suddenly appeared on the Beach.
To confirm this theory Oden’s Book would be based on the Book of Revelation from the Bible.
Font: https://en.wikipedia.org/wiki/Book_of_Revelation

This Book, basically says that there’s an 7 headed dragon, a serpent and a beast, if you think about it, it kinda happens in Wano.
Font: https://en.wikipedia.org/wiki/The_Beast_(Revelation)
So I finished the theory that One Piece would be the Kingdom of Heavy or New Jerusalem.

So what Roger saw would be exactly maybe a gate that only opens with the Heaven Keys and on there would be written JoyBoy’s Kingdom that basically who would own these Keys or only one Key would be a disciple of JoyBoy also it could be a Mugiwara.
Font: https://pt.wikipedia.org/wiki/Chaves_do_Céu (Portuguese)
The twelve names written in each door of the Kingdom would be each Mugiwara.
Alright this is it my One Piece Treasure. If you don't wanna look more you can just leave. But i posted more of my theories and even proofs that One Piece is based in the Bible down here.
Theory: How Oden would come back.
So when Oden gets back would be inspired in the folklore japanese character called Susanoo no Mikoto when he slays the 8 headed beast, basically the story says that Susanoo would disguise himself as a old man and he would get close to the beast offering him alcoholic drinks, so the beast would drink it and get drunk, so Susanoo would show up and he prepares to fight and kills the Beast.
This would make sense because the reason that Oden lost the fight was because of an old person, so this would be interesting if Kaido loses because of an old man. With this Oden would have his revenge then later on Oden would die natural, with an random theory that Toki awakened her fruit and she was able to send Oden to the future but she wouldn’t remove the Oden present so basically she made 2 Odens, one that died and other that was sent into the future. But this would take the risk that Oden would have only 8 hours of lifespan.
(Big Proof that One Piece can really be based in Bible) Luffy and Boa Hancock
When Luffy and the Mugiwaras find One Piece they would open the Kingdom and meet with JoyBoy?, so there’s an part which Jesus arranges a forced bride for the Lamb, Lamb would be Luffy cause in english of course when he was a kid, people used to call him “Little Lamb” and the Bride would be Boa Hancock, because Luffy is from Brazil and the Woman’s Island was inspired in a city from Brazil called Noiva do Cordeiro that is only inhabited women's only and is also a famous known city in the whole world.
The Lamb is basically the saviour of humanity in the Bible. and Bride.. im not sure but it's not a person but we would refer it as the Bride would be the people that gets saved by the Lamb.
Font: https://epoca.oglobo.globo.com/vida...o-cordeirob-terra-das-mulheres-solteiras.html (Portuguese)
Theory: The Entrance of One Piece
Luffy would be the Lamb and this part shows that “The wall would rest over twelve foundations.

foundation would mean “support” This would be that the mugiwaras support the “Lamb” to accomplish his objective.
Font:https://www.biblegateway.com/passage/?search=Apocalipse 21&version=OL (Portuguese)
Theory: What would be the meaning of Straw Hat?
The Straw Hat would be a replacement of the Cross, like how Jesus has a Cross, Joyboy has his Straw Hat.

Maybe this would be that the Mugiwaras believe in Luffy and Luffy gets his “cross” and the Mugiwaras will follow him. This would be a modification of Oda.
Font: https://www.infoescola.com/biblia/livro-da-vida-do-cordeiro/ (Portuguese)
Theory: The God Fruits
This theory that I made is that one of the treasures inside of One Piece is the Tree of Life that would give you “Kami no mi” and would remove your Akuma no Mi powers that you have? Or maybe It could be improved.
I would say this theory because Akuma no mi could be “sins” and to enter One Piece would be a person without sins like how it says in the Bible. Also an extra is that in One Piece there's no darkness and no shadow/dark. So this would be that the Black Beard would never touch One Piece because it’s immune to darkness and One Piece would always glow.
