Jude tells readers to remember the predictions of the apostles of Jesus Christ Jude 1:17. He quotes the substance: “In the last time there will be scoffers, following their own ungodly passions” Jude 1:18.
Jude shifts from exposing disruptive people to strengthening his readers. He urges the “beloved” to remember what the apostles already warned: scoffers would come, driven by ungodly desires, and would splinter the community. These verses sit near the end of Jude’s short letter and function as a turning point from description to response. Earlier, Jude warns that certain people have slipped in and are damaging the community (compare the earlier framing in Jude 1:4).
Jude turns from describing the disruptive people to strengthening the “beloved” community.
A careful answer keeps the immediate passage, the book's argument, and the whole-Bible storyline together, so the question is answered in context instead of as a detached idea.
Start with Jude 1:17, then read the surrounding section so the answer stays connected to the passage's flow.
17But you, beloved, remember the words which have been spoken before by the apostles of our Lord Jesus Christ.