One Day Will Change Your Life

365 Daily Choices That Can Transform Your Faith, Character, Relationships, and Future

One a Day Will Change Your Life is a 365-day devotional and personal-development guide built around a simple but powerful idea: lasting transformation often begins with one faithful choice at a time. Dr. John M. Hartinger encourages readers to move beyond inspiration and put biblical principles into practice through the ordinary decisions that shape faith, character, relationships, work, stewardship, leadership, and the future.

Each daily reading combines a Scripture reference, a practical reflection, a specific “Today’s Choice,” and a prayer, giving readers a simple framework for turning biblical truth into daily action. Rather than asking readers to change everything at once, the book emphasizes consistent progress—showing how one decision can become a habit, one habit can become a pattern, and those patterns can ultimately shape a life.

Across the year, readers explore themes including character, relationships, purpose and calling, stewardship and work, leadership and influence, resilience and perseverance, gratitude and contentment, and legacy. The devotional applies faith to practical areas of life—from integrity, communication, relationships, and service to money, work, leadership, perseverance, and the responsibility to build something meaningful for those who come after us.

By the end of 365 days, the goal is not simply to have read 365 ideas, but to have practiced a year of intentional choices. The book reminds readers that character, families, relationships, businesses, and faith are often built in ordinary days—and that continually choosing faith, integrity, wisdom, service, and purpose can change the direction of a life.