This is the initial volume in the new American Edition of Luther’s Works—56 volumes in all—in modern English—the largest and most authentic English edition available anywhere. It brings to the English reading public for the first time Dr. Martin Luther’s most important writings. Ministers, theological students, and searching laypeople now have the opportunity to study and read extensively, and thus with greater comprehension, the enlightening and moving writings of God’s own chosen Reformation instrument. The first volume (numbered Volume 12) contains Luther’s commentaries on selected psalms beloved by Christians everywhere. They are for the most part the outgrowth of sermons and classroom lectures, family devotions, and private conversations held between 1524 and 1537. Figures of speech, allusions, and references not immediately clear have been carefully explained for a fuller understanding of the text. The archaic literary forms have been removed and obscurities of earlier translations cleared up. This is an updated version of an important piece in Luther’s tomes of work seminal to theological consideration everywhere.