On Christian Teaching' (Latin: De Doctrina Christiana) is a theological and philosophical work by Saint Augustine of Hippo, written between 397 and 426 AD. Augustine, one of the most influential figures in early Christianity and Western philosophy, was a North African bishop, theologian, and writer whose ideas profoundly shaped Christian doctrine and medieval thought.This book serves as a guide for interpreting and teaching the Scriptures, written to help Christian preachers and readers understand the divine truths contained in the Bible. Augustine divides the work into four books: the first three focus on how to interpret Scripture, while the fourth discusses how to communicate those interpretations effectively. His aim is to equip believers with the tools to read the Bible not just literally, but with wisdom and spiritual discernment.In the first part, Augustine explains the difference between things (the divine truths that should be loved and sought) and signs (the words and symbols that point to those truths). He teaches that Scripture must be read with humility and love, as all knowledge of God ultimately leads to charity — the highest Christian virtue. The second and third books guide readers through the complexities of biblical language, symbolism, and figurative expression, urging careful study of history, languages, and logic. The fourth book turns to rhetoric and preaching, advising teachers to speak with clarity, sincerity, and compassion so that truth may move the hearts of listeners.On Christian Teaching stands as one of the earliest and most influential works on biblical hermeneutics — the art of interpretation. It bridges faith and reason, offering a thoughtful framework for understanding Scripture and conveying its message with love. Even today, Augustine’s insights continue to influence theology, philosophy, and education within the Christian tradition.