It has long been said that once kids are in high school and college, they are beyond the influence of their parents. This pervasive cultural myth is not supported by research, biblical teaching, or even anecdotal accounts. Yet because of it, many Christian parents live in silent angst about the faith of their older and adult children, thinking they can no longer do anything to shape their kids' spiritual and life decisions.

Drawing on sociological research and Scripture, Dan Dupee shows parents that it is not too late--and in fact these turbulent years of transitioning into adulthood are...