"Preaching improves me. When I begin to speak, weariness disappears; when I begin to teach, fatigue too disappears."

A homily (from Greek ὁμιλία, homilía) is a commentary that follows a reading of scripture, giving the "public explanation of a sacred doctrine" or text. The works of Origen and John Chrysostom (known as Paschal Homily) are considered exemplary forms of Christian homily. In Catholic, Anglican, Lutheran, and Eastern Orthodox churches, a homily is usually given during Mass (Divine Liturgy or Holy Qurbana for Orthodox and Eastern Catholic Churches, and Divine Service for the Lutheran Church) at the end of the Liturgy of the Word. Many people consider it synonymous with a sermon. The English word homily is derived from the Ancient Greek word ὁμιλία homilia, which means intercourse or interaction with other people (derived from the word homilos, meaning "a gathering"). The word is used in 1 Corinthians 15:33 ("wicked homiliai corrupt good morals"). The related verb is used in Luke 24:14 (as homiloun), and in Acts 24:26 (as homilei), both used in the sense of "speaking with". The word later came to have a more technical sense. According to The Catholic Encyclopedia, Origen was the first to distinguish between logos (sermo) and homilia (tractatus).

Exegesis from the Greek ἐξήγησις, from ἐξηγεῖσθαι, "to lead out") is a critical explanation or interpretation of a text. The term is traditionally applied to the interpretation of Biblical works. In modern usage, exegesis can involve critical interpretations of virtually any text, including not just religious texts but also philosophy, literature, or virtually any other genre of writing. The phrase Biblical exegesis can be used to distinguish studies of the Bible from other critical textual explanations. Textual criticism investigates the history and origins of the text, but exegesis may include the study of the historical and cultural backgrounds of the author, text, and original audience. Other analyses include classification of the type of literary genres presented in the text and analysis of grammatical and syntactical features in the text itself.

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