Look buddy. There is this thing called the internet and even AI searches (like Perplexity.ai and ChatGPT). What you did not know now, you can simply know in a few seconds. You owe to yourself to know this person because he has written multiple dictionaries in Modern Greek and he is a top Greek grammarian who lives in Greece and his native tongue is Greek.
Side Note:
I am not impressed by your education in five countries. If you fail to continue to learn and gather new information to think critically and rationally, then those educational institutions have failed to truly teach you. Again, I am not trying to wound you here. You are simply not gathering new information when it is presented to you. You are not thinking rationally. Most Christians prefer to trust the Bible on the creation account (Which implies strongly a young Earth and no Evolution). Any outside ideas of an old Earth, and Evolution is something a person has to cram into the Bible. But hey, if you are liberal when it comes to the Bible, it doesn’t really matter what the Bible actually says. One becomes their own authority.
Are they on the level like a Georgios Babiniotis? Most likely not. Again, I would encourage you to research him online or YouTube. Do your own investigation. Please do not take the blue pill and continue to live in ignorance.
Jehovah’s Witnesses follow the New World Translation. This ties in with spiritist, Johannes Greber.
Johannes Greber used to be a Catholic priest. He began healing sessions. He talked to various spirits that said there is no hell or no blood atonement. The spirits also told him to never ever trust the Received Text (i.e., the Textus Receptus). After he got kicked out of the priesthood in Germany, he came to the United States, and he did a New Testament translation of the Bible into English. It is still the BIble used by the spiritualist church to this day. Greber talks about how the spirits guided him in every word of his translation. In 1 John 4:2, it says trust the spirits. Not even Modern Bibles have this rendering. The Jehovah’s Witnesses had Greber’s Translation in front of them when they did their New Testament translation. John 1:1 rendering in the NWT came from Greber’s translation. His NT Greek is based on the Vaticanus and Sinaiticus.
As for Calvinists: While there are some KJV-only Calvinists, there are also a lot of Calvinists who are for the Modern Bibles, and they defend the Critical Text, which flies in the face of Bible history and common sense, especially seeing that they do not fall into the liberal camp. Again, please understand I am not friend of Calvinism by any means. But they are not a liberal group (Despite their wrong beliefs in Calvinism).
Georgios Babiniotis has not declared to have any affiliation of religious denomination (Although he is the Former Minister of Education, Lifelong Learning and Religious Affairs of Greece).
The point here is that Georgios Babiniotis is an expert in the language of Greek (including Modern Greek and Koine Greek). I would take his expertise on the issue over yours and or any scholar any given day of the week. Nick Sayers (KJV / TR advocate) contacted Georgios Babiniotis about the validity of the claims of Greek Orthodox professor Eugenius Voulgaris (who lived from 1716-1806) who defended the Johannine Comma on grammatical grounds.
A blog examining the Johannine Comma, 1 John 5:7-8.
johanninecomma.blogspot.com
en.wikipedia.org