This book is a collection of sermons that have been written to direct our fellow coworkers and saints and to show them how to lead a life as a true servant of God. For this reason, this book is titled "Sermons for Those Who Have Become Our Coworkers." The author earnestly desires to share fellowship with coworkers within the faith, those who believe wholeheartedly in the righteousness of Christ, excluding personal interests. He does really desire this because he has met them by faith in the Lord's righteousness and they are also preaching it now.