Dominus Illuminatio Mea is the second of six planned volumes translating Denis the Carthusian’s (1402-1471) extensive Commentary on the Psalms. This second volume contains Denis’s Commentary of Psalms 26 through 50. This translation is the first ever translation of the work into English since Denis wrote it in the 1430s. Of more than mere historical or scholarly interest, this translation is aimed at a larger Catholic audience. It is accompanied by footnotes designed to supplement Denis’s text and explain or amplify on biblical, dogmatic, Thomistic, scholastic, catechetical, or historical matters raised in Denis’s text with which the ordinary reader may not be familiar. Reading Denis’s Commentary will expose the reader to that which Pope Benedict XVI called for in the post-synodal Exhortation Verbum Domini, namely, that the faithful rediscover the unity of Scripture and its different senses-the literal, the allegorical, the moral, and the anagogical. Reading Denis’s Commentary on the Psalms with its use of the analogy of Scripture and its extensive application of the different senses of the Psalms is a perfect way to rediscover this richness of interpretation that has been largely lost. It will allow the reader to re-read the Scriptures in the light of Scripture’s unity and its spiritual, plenary sense as Pope Benedict XVI urged.