a. I was very diligent to write to you: Jude’s initial desire was to write about our common salvation. But something happened—Jude found it necessary to write a different letter. We might say that this was the letter that didn’t want to be written. i. The letter of Jude is essentially a sermon. In it, Jude preached against the dangerous practices and doctrines that put the gospel of Jesus Christ in peril. These were serious issues and Jude dealt with them seriously.