The book Vital Concepts of the Bible, written by John L. McKenzie, S.J. (1910-1991), is a concise guide that discusses important concepts and doctrines in the Bible from a Catholic perspective. McKenzie is known as a leading Bible scholar and author of the Dictionary of the Bible. This book aims to provide a solid understanding of the fundamentals of the Christian faith as expressed in the Bible, serving as an anchor in historical truth and a compass to guide the daily lives of believers. McKenzie outlines these concepts to help readers apply biblical truths in their personal and communal lives.