Real purity does not begin with a stronger will. It begins with a new heart.

Set Apart: A New Heart in Christ is a 28-day devotional that centers teen boys on the gospel power they need for holiness. This book teaches that following Jesus is not merely behavior improvement. It is new life, new desires, new allegiance, and a new way to offer the body to God.

You will explore biblical themes such as a new heart, resolve before temptation, honoring what is holy, faithfulness in a corrupt culture, courage under pressure, renewed thinking, and grace that trains the believer. The devotionals are honest about temptation, but they do not leave teen boys staring at sin. They lift their eyes to Christ, who forgives, changes, strengthens, and leads.

This book is a strong fit for teen boys who feel stuck, discouraged, or tired of shallow advice. Parents and mentors can use it to explain why Christian purity is rooted in union with Christ, not self-salvation. Youth leaders can use it for discipleship tracks focused on gospel identity, sanctification, and practical holiness.

You can expect to grow in:

• Understanding holiness as the fruit of new life in Christ.

• Preparing for temptation before it arrives.

• Seeing the body as belonging to the Lord.

• Replacing shame-driven effort with gospel-rooted obedience.

• Learning practical daily surrender through Scripture and prayer.

A New Heart in Christ gives teen boys hope that change is possible because Jesus does more than command purity. He creates new hearts and teaches His people to walk in newness of life.