In this collection of essays, Seyoon Kim analyses the structure and function of 1 Thess 1-3, which leads to a new reading of 1 Thessalonians. He devotes several essays to a comprehensive exposition of Paul's gospel for the Thessalonians by fully unfolding several summaries of the gospel in the epistle, by detecting and analysing various Son of Man sayings of Jesus that are alluded to or echoed in it, and by a thorough discussion of the unity and continuity of Paul's gospel between this early epistle and his later epistles. This exposition is augmented by a new observation of Paul's doctrine of justification in 2 Thess 1-2 and a new explanation of τὸ κατέχον and ὁ κατέχων (2 Thess 2:3-8).