Jude 1:20 in the World English Bible
But you, beloved, keep building up yourselves on your most holy faith, praying in the Holy Spirit.
Context
19 These be they who separate themselves, sensual, having not the Spirit.
20 But ye, beloved, building up yourselves on your most holy faith, praying in the Holy Ghost,
21 Keep yourselves in the love of God, looking for the mercy of our Lord Jesus Christ unto eternal life.