Salvation is the crucial subject of this 275-page course by David Duncan, and the definition is broadened to include everything that was purchased at Calvary. Salvation is shown to include not only the forgiveness of the sins of the past and deliverance from the power of sin in the present but also protection against the depredations that could be brought on by sin in the future. All of the spiritual needs of man are met by the redemption provided by Christ on the cross.