How can I be sure that God has forgiven me? A true Christian may go through their whole life and never be able to say, "God loves me and forgives me." Believers who are sure of God's love for them may suddenly lose their assurance of forgiveness, finding themselves plunged into darkness and despair. Why does this happen? In this volume, essentially an exposition of Psalm 130, John Owen pinpoints a spiritual diagnostician, but also with the understanding of someone who had profound experience of those "deapths." And Owen does not stop with diagnosis. He maps out a bibilical path of faith and obedience for distressed believers who long to say with full assurance, "God has forgiven me."