Argument from "You did it wrong"

[Rev. Rye]

Looks like a protracted version of a "No True Scotsman" fallacy, possibly a less intellectual "Courtier's Reply." Some versions try to cut to the chase and ask "did you know the Lord?" and claiming that a Christian is, by definition, "one who knows the Lord." The OED and Merriam-Webster show no such definition in their words. Even the American Heritage Dictionary, which was created specifically as a conservative alternative to Webster's Third's permissiveness, fails to include such a definition. Not even Samuel Johnson's dictionary uses such a definition (and that was written at a time when Christianity was more or less taken for granted in English-speaking lands). If there is a proper dictionary that defines a Christian as "One who knows the Lord" (not a glossary, not Christian reference books/propaganda, but a proper dictionary of the English language), prove me wrong.

Nota Bene: If you're going to argue based on definitions, be sure said definitions are accurate.