The theological journey into St. Augustine's thoughts on law and grace takes us through the intellectual, spiritual, and doctrinal foundations of a man whose life and writings became pivotal in shaping Christian theology, especially in the Western Church. Augustine, born in 354 CE in Tagaste, North Africa (modern-day Souk Ahras, Algeria), stands as one of the most influential figures in Christian thought. His life is a testimony to the complex interplay between human nature, divine law, and the profound power of grace. His works, especially Confessions and The City of God, form the bedrock for understanding Christian doctrine on sin, salvation, divine justice, and mercy, themes intrinsically tied to the concepts of law and grace. Augustine articulated a doctrine of grace that placed the sovereign and free action of God at the center of salvation. His reflections on grace are seen most clearly in his works against the Pelagians, where he argues that the law serves to highlight human sinfulness, but it is grace alone that heals and saves. For Augustine, the law, although good in itself, was not capable of justifying sinners. Rather, it acted as a mirror to reveal the depth of human brokenness and the need for a divine remedy. Through grace, which is freely given by God and cannot be earned, human beings are restored to their proper relationship with God, a relationship that the law alone could not secure.