Jude 1:3
Condemnation of the False Teachers
1:3 Dear friends, although I have been eager to write to you about our common salvation, I now feel compelled instead to write to encourage you to contend earnestly for the faith that was once for all entrusted to the saints.
Jude 1:20-21
1:20 But you, dear friends, by building yourselves up in your most holy faith, by praying in the Holy Spirit,
1:21 maintain yourselves in the love of God, while anticipating the mercy of our Lord Jesus Christ that brings eternal life.