The second of eleven volumes of Milton's Complete Works to be published contains his systematic theology, De Doctrina Christiana. It is his longest work and was, Milton said, his dearest possession. In it, he works out his religious beliefs from Scripture; what Scripture does not mention, such as the Trinity, he energetically refutes. The work exists in manuscript and was written in Latin for European as well as home consumption. Its chapters are conceived and arranged according to the binarizing logic devised by the Protestant martyr Ramus. De Doctrina Christiana first appeared in print nearly two hundred years ago but the previous editions are now overdue for replacement. For this ground-breaking edition, the manuscript has been freshly transcribed, with fuller textual apparatus and commentary than in any of its few predecessors. The edition aims above all at accuracy, clarity, and completeness, presenting Latin and English on facing pages, amplifying the Biblical citations where necessary, and adding extensive annotations not only on the text and its transcription but also on the content and context of Milton's ideas. The provenance and history of the work are expertly narrated, enabling readers to get closer than ever before to its composition. Milton's Latin is examined in unprecedented detail, and the translation aims to reproduce the nuances and changes of register which characterize his Latin in all its individuality - from the high-flown rhetoric of his arguments in favour of divorce and polygamy, and against tithing, to the plainer style of those sections where he states his main points more dispassionately but bolsters them with strong and wide-ranging Biblical support. The structure of this massive edifice is clarified by the addition of charts which show the Ramist scheme he followed, whereby the primary division between faith (Book One) and worship (Book Two) is mirrored by smaller and smaller subdivisions whose relationship to the whole can be seen at a glance.