"But you, beloved, build yourselves up in your most holy faith; pray in the Holy Spirit; keep yourselves in the love of God, waiting for the mercy of our Lord Jesus Christ that leads to eternal life." - Jude 20-21
These are the instructions Jude gives us in response to those who "in the last time" will be causing division and "following their own ungodly passions." But you beloved - you're different.
Use the faith to build yourself up, be praying in the strength and power of the Holy Spirit. Then I love this, "keep yourselves in the love of God." At first I read this as "keep yourselves in love with God," but that's not what this says. What does keep yourselves in the love of God mean? Do what you can to please Him so he continues loving you? That would seem theologically pretty unsound.
I think basically its saying we need to keep ourselves different from those who are divisive. And wait for the mercy of Jesus that leads to eternal life. This is, as the title of this section says in the ESV, a call to persevere.
What does it look like for you to persevere? How do you understand keeping yourself "in the love of God?"