KJV 777 vs NIV 666

The KJV has 3 sets of 7 references to each of the following words and phrases;
1. The Word
2. The Mediator
3. “After the order of Melchisedec”

The NIV has removed 1 of each of these words. So the NIV has 3 descriptions of Christ that add up to 666. The KJV numbers are 777.