- Haggai's name is mentioned in the titles of several psalms in the Septuagint (Psalms cxxxvii., cxlv.-cxlviii.) [and other versions, but these titles are without value, and moreover vary in MSS.
- Cxlviii., on Multiple Algebra, Quart.
- Psalms cxlviii.-cl.
- P. Migne, Patrologia graeca, cxlviii., cxlix.; see also C. Krumbacher, Geschichte der byzantinischen Litteratur (1897).
- Cxlviii., 1859; Collected Works, iv.