David Solomon, editor of the Gregory of Nyssa Homepage, has posted A Comparative Study of the Commentaries on the Song of Songs by three great men: Origen of Alexandria, Gregory of Nyssa, and Bernard of Clairvaux. You won’t find better company for reading the Bible’s most lovely and loverly book.
If you’d rather read Origen’s commentary in its entirety (and on paper), you’ll find it in the Ancient Christian Writers series. A tantalizing recent study is Origen on the Song of Songs As the Spirit of Scripture: The Bridegroom’s Perfect Marriage-Song.
An excellent companion volume to Gregory’s portion is From Glory to Glory: Texts from Gregory of Nyssa’s Mystical Writings by Jean Danielou and Herbert Musurillo.
Hat tip: St. Paul Center for Biblical Theology.