What does the Bible say about the second coming of Jesus?

The second coming of Jesus is a pivotal doctrine in the Christian faith, taught clearly in 1 Thessalonians 4:13-18. This passage assures believers that just as Jesus died and rose again, He will come again to bring those who have died in Him back to life and unite them with those who are still alive. Paul encourages the church not to grieve without hope, reminding them of the profound assurance of resurrection and eternal life. In this way, the second coming serves as a source of comfort and hope for Christians, affirming the promise of our ultimate reunion with Christ and one another.