The Thessalonians are enduring persecution and tribulation, but God will ultimately repay their troublemakers and grant them rest when Jesus is revealed. The day of the Lord will not come until the apostasy and the man of sin are revealed, at which point God will judge those who have not accepted the truth. The faithful are encouraged to stand firm in their traditions and the apostle asks for prayer that the Word of God may spread. Additionally, he cautions against idle brothers and instructs them to work and support themselves, concluding with a blessing and greeting.