What does the Bible say about comfort for the bereaved?

In 1 Thessalonians 4:13-18, Paul writes to comfort the believers regarding those who have died, reminding them that they do not mourn as the world does. Believers have a sure hope in the resurrection and eternal life, based on the death and resurrection of Jesus Christ. The passage emphasizes that the hope of believers is founded not on vague wishes, but on the reality of Christ's victory over death. This is a source of profound comfort, as believers can rest assured they will be reunited with loved ones who have died in faith when Christ returns.