Epistle of St. Jude
Letter of Jude, also called Epistle of St. Jude, abbreviation Jude, brief New Testament letter written to a general Christian audience. The letter appeals to Christians to “contend for the faith that was once for all entrusted to the saints” (1:3) and to be on their guard against people “who pervert the grace of our God into licentiousness and deny our only Master and Lord, Jesus Christ” (1:4). Source