Paul’s two Epistles to the Thessalonians were written to a young church with young believers. These Epistles are very precious, for they render particular help concerning the young Christian life and church life. In the Life-study of 1 and 2 Thessalonians, Witness Lee presents the basic elements in Paul’s word to the Thessalonians concerning living a holy life for the church life. Paul’s Epistles to Timothy, Titus, and Philemon, written to more experienced believers, cover God’s economy regarding the church. In the life-study of these books, Witness Lee presents crucial points in these Epistles concerning God’s economy, the inoculation of the church against decline, the maintenance of the order of the church, and the believers’ equal status in the new man.