Source type What it usually lookslike How to recognize it Main research value Homily or homiletic series Sermons delivered on lections or sequential passages Often liturgical or sermon-like in form, yet may still work verse by verse Essential for reception in preaching, catechesis, and church history Exegetical passage inside a dogmatic or ascetic work Short argument or proof text inside another genre Found by searching wording rather than title alone Crucial for theology and doctrine, but easy to miss in commentary-only searches Catena Chain of excerptsfrom earlier authors Often anonymous, compiled, with author names attached to individual snippets Preserves otherwise lost fragments, but excerpt context must be checked carefully Gloss Marginal and interlinear explanatory notes around the biblical text Layout is part of the form, especially in glossed Bibles Best for medieval school use and reception history Scholium Short note on a hard word, place, reading, or phrase Usually brief and marginal Good for micro-exegesis, textual and lexical problems Medieval commentary Distinct work by a medieval author on a biblical book Better tracked through Repertorium Biblicum Medii Aevi than through patristic-only tools Essential once the target is medieval Latin exegesis rather than Fathers proper Modern anthology Curated extracts translated and arranged for convenience Editor-driven selection, not full source text Excellent for teaching and devotional orientation, weak for philology or completeness Critical edition Edited text with apparatus and manuscript discussion Introduction, sigla, source apparatus, editorial rationale Required for serious academic citation and textual work Translation Rendered text in amodern language May or may not face theoriginal text Vital for access, but not enough where wording or textual form is disputed 6 7 8 9 10 11 12 3 13 2