In this landmark study, author and teacher Guy Duininck challenges long held and widely accepted interpretations of the apostle John's familiar words in I John 1:9. Following a comprehensive examination of those words, Guy offers a fresh interpretation of I John 1:9; an interpretation that is solidly grounded in Scripture, appropriately considerate of the time and place John's first epistle was written, supported by sound logic, and harmonious with important truths of the new and better covenant based on the finished work of Jesus Christ. Revealing crucial contexts and delivering essential information about the apostle John's familiar words in I John 1:9, this study is destined to become a classic. In Must We Confess Our Sins? you will find answers to questions like these: If believers don't confess to God each and every sin they commit, will they be unforgiven and unclean? If believers die with unconfessed sin in their lives, will they be refused a place in heaven? Is the Catholic Church's Sacrament of Confession a valid practice? What dangerous errors was the apostle John warning about and correcting in his first epistle? Are believers' sins already forgiven; past, present and future?