1 Thessalonians was one of the first New Testament letters to be composed. It was written by the Apostle Paul to a young church in modern day Greece: a fledgling group of believers who had been saved through Paul's preaching.
The Apostle, however, had to leave Thessalonica in a hurry. Much to Paul's concern, he was forced to leave behind this new band of believers, in all their spiritual youth. Anxious about how they were doing spiritually, Paul dispatched Timothy to visit the church and bring back an update. Timothy returned to Paul with an encouraging report that, despite a few difficulties, the believers were going on with the Lord.
Paul then wrote this warm letter in a spirit of joy and thanksgiving. He rejoiced that the Thessalonians were exhibiting the faith, hope and love: the marks of a genuine church. The Apostle taught them further on matters like sexual ethics and the return of Christ.
This letter contains Paul's words of encouragement to the Thessalonian church. They remain an encouragement today to every believer who takes time to read them.