The Holy War Made by King Shaddai Upon Diabolus, or, The Losing and Taking Again of the Town of Mansoul is a 1682 novel by John Bunyan. Written in the form of an allegory, it tells the story of the town Mansoul which rebels against king Shaddai, replacing his benign rule with that of Diabolus who turns out to be a harmful ruler. The king sends his son Emmanuel to reclaim the city. Salvation can come to the city only by the victory of Emmanuel.
This powerful allegory refers to the battle being fought for man’s heart, mind, and spirit. The entire narrative is a jewel of Christian literature, illuminating the process of the fall, the conversion, fellowship with Emmanuel, and other doctrines.