Jude 1:3-4 - Jude's Purpose In Writing
3 Dearly beloved, making all diligence to write to you of the common salvation, I had necessity to write to you, beseeching to fight for the faith once delivered to the holy ones. 4 For certain men entered in by stealth, long ago written of beforehand for judgment, irreligious, having changed the grace of our God into licentiousness, and denying the only Lord God, and our Lord Jesus Christ.