A familiar belief, even within churches, suggests that we are basically good and will be saved by God. In contrast, the Bible teaches that we are condemned sinners in need of a savior. We must understand the depth of our sinfulness before we can grasp the desperation of our need. Recognizing this, Alistair Begg walks us through the nature, extent, and effects of sin. We can be saved by trusting in only Jesus—not our good works.