Mary says "What is that based on? The nominative of address could be either articular or anarthrous."
That's based on the fact that EVERY time Jesus is addressed as Lord in the New Testament it's in the Vocative case and never in the Nominative case.
Mark 15:34 (compare the parallel in Matthew 27:46 where the vocative is used
This one boils down to interpretation. Mark viewed Jesus words as a quotation of Psalms while Matthew view it as Jesus actually talking to God. Grammatically speaking they are both correct depending on whether Jesus was quoting or not.
Luke 8:54, John 19:3, Ephesians 5:22, Revelation 4:11, 15:2
I fail to see your point in the first 3 verses. Can you be more specific as what you want me to look at in those verses because I didn't see anything unusual. Concerning Revelation you know that book in written in poor Greek with many grammatical errors so it really doesn't make sense for us to use that book as a model when it contains errors.
How can you say that? Did you even read the passage?
Grammar, grammar, grammar. This is simple stuff. You learned it at school, years ago. You can't invent your own rules of grammar to suit your own beliefs every time you come across a Bible passage that disagrees with them.
If you think the grammar supports the notion that Thomas wasn't talking to anyone, please demonstrate how that is the case. Don't just make a statement that breaks the rules of grammar and expect us all to believe it.
Did you even read my opening post? Are you not aware that we're not using the rules of English as the passage was not written in English?
Ah, because what you forgot to mention is that the nominative was frequently used for direct address (Nominative of Address), indeed more frequently than the vocative (almost 600 times in the NT, twice as many as vocatives) which makes your post largely beside the point.
I've never heard such a claim, can you please give some examples. For the record I didn't see a Nominative acting as Vocative in any of the New Testament verses you posted minus the quotation in Mark.