"But you, dear friends, build yourselves up in your most holy faith and pray in the Holy Spirit... snatch others from the fire and save them..." -- Jude 20, 23
When the house goes up in flames and fire-fighters arrive, you hope they are in good shape. If someone is caught in the house and needs to be rescued, you hope the rescue team is skilled and well trained. People's lives depend on those who are always ready to save the day. The best fire-fighter is a prepared fire-fighter.
In the face of eternity there are souls in danger of fire every day. They need someone who is well trained to "snatch' them from the flames. But too many believers have allowed the "good life" to eat up their time and energy. When the alarm rings they aren't ready to help. The best fire-snatcher is a prepared fire-snatcher.
The emphasis of verse 20 is to build oneself in the faith. If you hope to snatch others from the flames, you need to be skilled and trained. Are you spending time every day in the Word of God and in Spirit led prayer? Do you practice these disciplines so that you're always ready? Remember, the best fire-snatcher is a prepared fire-snatcher.