Mr. Love is correct.
The exact words and teachings spoken directly by Jesus make up roughly 1.5% to 2% of the entire Bible, or about 3.55% to 4.5% of the New Testament.
The Breakdown by Numbers
Total Bible: The entire Christian Bible contains roughly 783,000 words (depending on the translation).
Words of Jesus: Across the four canonical Gospels (Matthew, Mark, Luke, and John), the unique text attributed directly to Jesus as direct speech totals roughly 31,400 words (when removing overlapping/parallel accounts).
Percentage of the whole Bible: 31,400 out of ~783,000 words is approximately 4% of the New Testament, but only about 1.5% to 2% of the entire Bible (which includes the large Old Testament).
Where Jesus' Teachings Appear
The Gospels: Direct quotes from Jesus are found almost exclusively in the first four books of the New Testament (Matthew, Mark, Luke, and John).
Within the Gospels: Jesus' spoken words account for varying amounts of text depending on the specific book:
Matthew: ~56% of the text contains words spoken by Jesus.
Mark: ~35% of the text contains words spoken by Jesus.
Luke: ~48% of the text contains words spoken by Jesus.
John: ~42% of the text contains words spoken by Jesus.
The Rest of the New Testament: Out of the 27 books in the New Testament, 23 books (such as Acts, the letters of Paul, and Revelation) do not contain direct quotes of Jesus speaking during his earthly ministry.
RecentNo New Wars! Well, maybe ... by Reacher
Let's talk about somethin...
by murphstahoe 
Total Members: 142