I am troubled that you men conspire together to present such a weak and pathetic god as if he is the true God of the Bible who has invested all that he had, his own son, in our salvation, and yet cannot give an accurate record of him and is still trying after nearly 2000 years. Is he the God who admonished us all to speak the same things lest there be divisions and offenses when he comes.
You misrepresent and distort the view of believers who disagree with human, non-scriptural KJV-only reasoning. We do not at all present "a weak and pathetic god" as you falsely allege. I believe God was just as faithful to keep all His promises concerning His words before 1611 as afterwards.
The four gospels with their actual differences in parallel cases would provide evidence that would refute your misunderstanding and misinterpretation of the verse concerning speaking the same things.
The KJV itself also has the same type differences between it and the preserved Scriptures in the original languages as the NKJV would have. The KJV omits giving any English word/rendering for many preserved original-language words of Scriptures in its underlying texts, and the KJV adds many words in English for which it has no preserved original-language words of Scripture.
Modern, non-scriptural KJV-only teaching creates divisions in the body of Christ.