Ideas have consequences, sometimes far-reaching and world-changing. The Christian faith contains many volatile truths that challenged--and continue to challenge--the cultural and religious status quo of the world. This biblical, historical, and philosophical exploration of some of Christianity's most transformational ideas offers a unique look at how the world changed when Christ and his followers came on the scene. These ideas include the resurrection Jesus as God incarnate creation out of nothing the compatibility of faith and reason justification by grace through faith humankind in God's image the greater good of suffering Pastors, students, and thoughtful Christians will be strengthened to face contemporary challenges to these truths and will find the confidence to impact their world for Christ.