Jude 1:3-4 - Jude's Purpose In Writing
3 Beloved, having an earnest desire to write to you concerning the common salvation, I was under a necessity of writing to exhort you that ye would strive earnestly for the faith which was once delivered to the saints. 4 For there have crept in some men, who have been of old described as under this condemnation, impious people, that turn the grace of our God into lasciviousness, and deny God the only Lord, and our Lord Jesus Christ.