Jude 1:3, 20, 24

Beloved, when I gave all diligence to write unto you of the common salvation, it was needful for me to write unto you, and exhort you that ye should earnestly contend for the faith which was once delivered unto the saints.

But ye, beloved, building up yourselves on your most holy faith, praying in the Holy Ghost

Now unto him that is able to keep you from falling, and to present you faultless before the presence of his glory with exceeding joy