Dr. Lutzer hits a grand slam for grace in this book! Explaining the gospel in a way that anyone can understand, Dr. Lutzer shows the believer why they are completely secure in Jesus Christ. When justification before God depends upon Jesus Christ alone, through simple faith in Him alone, salvation is sure and secure. When justification before God depends upon any mixture of our works and Jesus Christ, salvation is not sure and it then becomes a false gospel (Rom. 10:3). "Salvation is of the Lord" (Jonah 2:9). "Salvation belongeth unto the Lord" (Psalm 3:8). That's how we can be sure where we will spend eternity, when Jesus Christ alone is our only hope and reason for entrance into heaven. The second we think our works (either before we think we are saved or after we think we are saved) will merit us entrance into heaven, we have abandoned grace and Jesus Christ, and embraced a false, Satanic gospel. This book is one of the best books on the gospel and the security of the believer that I have ever read. I give it my highest rating. Thank you Dr. Lutzer!