Some of the great teachings that Arthur includes in her book are teachings that once we are saved, we really are saved and also that God is sovereign and powerful above all the creation. Since God is sovereign, we can understand that all trials ultimately come from God and that there is a good purpose behind them. Arthur encourages us to see the positive side of trials and to trust God through them. I highly recommend this book!
My disclaimer - I received this book from the publisher but I always give brutally honest reviews. I want you to be able to choose the best book based on stars because I know you have limited time and energy to read.