Passage
But ye, beloved, building up yourselves on your most holy faith, praying in the Holy Spirit,
But ye, beloved, building up yourselves on your most holy faith, praying in the Holy Spirit,
Jude 1:18 That they said to you, In the last time there shall be mockers, walking after their own ungodly lusts.
Jude 1:19 These are they who make separations, sensual, having not the Spirit.
Jude 1:20 But ye, beloved, building up yourselves on your most holy faith, praying in the Holy Spirit,
Jude 1:21 keep yourselves in the love of God, looking for the mercy of our Lord Jesus Christ unto eternal life.
Jude 1:22 And on some have mercy, who are in doubt;
The verse centers on "Spirit", "faith", "beloved", "building", "yourselves", "most", "holy", and "praying". It is saying that the verse draws attention to "Spirit" and "faith", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 19's "These are they who make separations sensual..." into verse 21's "keep yourselves in the love of God...", so "Spirit" and "faith" belong inside that flow. In Jude context, the local focus is Christ, faith, and discipleship.
A plain takeaway is to answer the verse's own emphasis on "Spirit" and "faith" with trust shaped by these words, not by a vague optimism outside the passage.