Passage
But you, my beloved, building yourselves upon your most holy faith, praying in the Holy Ghost,
But you, my beloved, building yourselves upon your most holy faith, praying in the Holy Ghost,
Jude 1:18 Who told you that in the last time there should come mockers, walking according to their own desires in ungodlinesses.
Jude 1:19 These are they who separate themselves, sensual men, having not the Spirit.
Jude 1:20 But you, my beloved, building yourselves upon your most holy faith, praying in the Holy Ghost,
Jude 1:21 Keep yourselves in the love of God, waiting for the mercy of our Lord Jesus Christ, unto life everlasting.
Jude 1:22 And some indeed reprove, being judged:
The verse centers on "faith", "beloved", "building", "yourselves", "upon", "most", "holy", and "praying". It is saying that the verse draws attention to "faith" and "beloved", 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 separate themselves sensual..." into verse 21's "Keep yourselves in the love of God...", so "faith" and "beloved" 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 "faith" and "beloved" with trust shaped by these words, not by a vague optimism outside the passage.