Let Not Your Heart be Troubled, another excellent book by Martyn Lloyd-Jones. The book is a series of eight sermons (139 pages) on John 14:1-12. The purpose of this book is to bring comfort, peace, strength, and to build up Christians in Godly faith in times of uncertainty. The sermons are very easy to read and understand, but loaded with strong biblical doctrine concerning Truth as revealed in God's Word. Truth concerning belief in God, belief in Jesus Christ, His work, and the certainties of the promises He made. Truth that brings hope to the lost, strength, comfort, peace and security to the redeemed, and guidance to all for daily living. The eight individual sermons each have a message of their own. However, the sermons collectively build on each other, and a larger message emerges that strengthens confidence, and assurance in God's promises, and how to face life's obstacles, those uncertainties placed there by Satan for the purpose of disrupting our relationship with Christ. Personally, I rank this book up there with the Studies in the Sermon on the Mount, also by Martyn Lloyd -Jones. Regardless of your personal situation, or life's problems that are confronting you, the messages in this book will provide hope, strength, comfort, peace and encouragement that only Jesus Christ our Savior can provide.