Jude includes a specific instruction: “have mercy on those who doubt” Jude 1:22. This line appears in his practical directions for responding to people in danger and instability Jude 1:22–23.
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 1:22, then read the surrounding section so the answer stays connected to the passage's flow.
22On some have compassion, making a distinction,