Some of the key issues that make up the content of this book are (1) why God expects obedience from his children, (2) how acknowledging our sinful nature helps to maintain a right relationship with God, (3) being aware of and taming the power of our tongue, and (4) how we act out the love of God that shows we are indeed a true believer. These issues and several others in this book will help a Christian become the mature Christians that God expects his children to be.