The book of Jude is a General Epistle (Apostolic Letter). The author is Jude the brother of James, both of who are half-brothers of Jesus Christ. Jude wrote it circa 75 A.D. The purpose of this book is to address false teachings and to illustrate a contrast between the error of heresy and the truth of Jesus Christ. Jude consists of only one chapter.
• In verses 1- 16, Jude identifies himself and quickly delves into the dilemma of false teachings. “For certain persons have crept in unnoticed” (vs. 4), heresy was obviously seeping into the region, disturbing the churches, and deceiving believers. He begins by illustrating similarities between false teachers and condemned individuals from the Old Testament citing Cain, Balaam, and Korah.
• Verses 17-25, Jude urges Christians to “remember the words that were spoken beforehand by the apostles of our Lord Jesus Christ” (vs. 17). He was referring to all of the apostles and disciples in the past, which had warned about false teachers and prophets that were coming to deceive. His advice is to focus on Jesus Christ and to watch out for each other so that no one is misled into error.
Those who place their faith and trust in Jesus Christ are secure in salvation, not by their own good deeds, because no one is good enough to do that, but believers are secure by the vicarious work of Jesus Christ on the Cross. It is only by, “Him who is able to keep you from stumbling, and to make you stand in the presence of His glory blameless with great joy, to the only God our Savior, through Jesus Christ our Lord, be glory, majesty, dominion and authority, before all time and now and forever. Amen.” (vs. 24-25).