This book makes a clear distinction between the old and new covenants. The difference between living under the law and living under the grace of Jesus is a revelation in freedom from trying to live under the conviction of the law which is impossible without the unmerited favor we received through the cross.
Wow, this book was a real eye-opener! Used to think that I had to constantly work for God's favor but then through this book (which was backed up with Scriptures), I was able to see that it's not about what you do, it's about what Jesus has done. It's not about how much you love God, but how much God loves you! Great book, recommend to all believers