Jacob van Bruggen
“To a large extent, the KJV owes its authority to the rule that most inserted words were printed in italics. The Bible reader was thus able to see how carefully the translators treated God’s Word. They were afraid to add even one word, but if they were not able to translate without adding a word for the sake of clarity, they indicated that it had been added.”
Jakob van Bruggen, The Future of the Bible, 136-137