This book was written by John Bunyan, writer of "Pilgrim's Progress". Bunyan bases all of these wonderful sermons and lectures on John 3: 37 "All that the Father giveth me shall come to me; and him that cometh to me I will in no wise cast out." Have you sinned? Have you doubt? Have you been a backslider and continued in sin you despise? Bunyan addresses these and many more aspects of removing doubts that we have and approaches to difficulties of sinning and backsliding in the approach to Christ.I was encouraged, taught, and strengthened from reading this book. It is most worthwhile.