This article offers a positive exposition of Augustine's mature Trinitarian theology that builds on the best of recent scholarship. It describes the Trinitarian theology of Augustine as being structured around the Father's begetting of the Word that breathes forth Love. It identifies the roots of Augustine's theology in the Latin anti-modalist tradition and in his appreciation of God's transcendent simplicity. It considers Augustine's emphasis on the salvific missions as drawing us into the mystery of the divine processions