Jude identifies himself as the writer of this letter and greets his readers. He was probably the half-brother of Jesus. There are two other Judes mentioned in the New Testament.
"may mercy, peace, and love be increased many times for you." These ideas are spoken of as if they were objects that could grow in size or number. This can be restate to remove the abstract nouns "mercy," "peace," and "love." AT: "May God continue to be merciful to you so that you live peacefully and love one another more and more (See: [[rc://en/ta/man/translate/figs-abstractnouns]])