John Owen insisted on the importance of the Christian dealing effectively with their sinful tendencies and attitudes. He believed that God, through his Word and Spirit, had provided the guidelines and the power for this to be achieved. In this classic, Owen effectively dismisses various excuses for not engaging in self-scrutiny and yet avoids the current trend of self-absorption. In so doing he provides principles to help believers live lives of holiness. The Christian Heritage imprint seeks to take the best of and most practical of our Christian Forefather's works to represent them to a new generation. J. I. Packer, one of the best contemporary writers and theologians who reintroduced the Puritans to a new generation provides the introduction for this book.