Book excerpt: The greatest challenge for the twenty-first-century church is the lack of catechesis--training in biblical and doctrinal knowledge. As J. I. Packer states, "where wise catechesis has flourished the church has flourished, and where it has been neglected the church has floundered." It is increasingly apparent that we are raising up generations of Christians who often have little idea what they should believe and why they should believe it. Grounded in the Faith takes up that challenge with twenty-four low-prep, in-depth sessions that will ground believers in the basics of their faith. This new innovative guide is a transformational disciple-making tool that leaders can immediately use to activate discipleship in the church. It presents individuals, small groups, and Sunday school classes with a cohesive understanding of historic, sound, biblical theology that serves as a catalyst for deeper intimacy with Christ. It is a user-friendly guide to growth in the Christian faith that covers important topics such as justification, overcoming temptation, sanctification, evidence for the inspiration of the Bible, the value of prayer, the guidance of God, the Trinity, the uniqueness of Christ, and the attributes of God.