""Mystery Hid from Ages and Generations Made Manifest by the Gospel Revelation Or The Salvation of All Men"" is a book written by Charles Chauncy. The book explores the concept of universal salvation, which suggests that all people will eventually be saved and go to heaven. Chauncy argues that this idea is supported by the teachings of the Bible and that it has been hidden from generations of Christians. The book is a theological treatise that delves...