In this commentary Andy Johnson engages with the developing interpretive framework of missional hermeneutics to present a theological interpretation of 1 & 2 Thessalonians that aims to help the church more fully participate in the life and mission of the triune God. After a verse-by-verse commentary, Johnson closely examines the theology of the two epistles, focusing especially on the topics of eschatology, holiness, and election in light of his missional reading of 1 and 2 Thessalonians. In addition to his exegetical and theological analyses, Johnson also considers canonical concerns, doctrinal commitments, ecclesial practices, proposals from contemporary systematic theology, and insights gleaned from the field of neuroscience regarding personal and community formation, all of which help to clarify and enrich readers' understanding of various passages.