With the recent posts on Early Church Fathers and Psalms, I'm surprised that the works of Johanna Manley have not been suggested. These should be considered as absolutely essential:
1. Wisdom, Let Us Attend: Job, the Fathers, and the Old Testament (Holy Fathers)
2. The Bible and the Holy Fathers for Orthodox (Daily Scripture Readings and Commentary for Orthodox Christians)
3. The Lament of Eve (Holy Fathers)
4. Grace for Grace: The Psalter and the Holy Fathers : Patristic Christian Commentary, Meditations, and Liturgical Extracts Relating to the Psalms
5. Isaiah Through the Ages (Holy Fathers)