Gregory addresses "all of the faithful of Christ" in
Audita tremendi. In his letter, which begins with the words "Audita tremendi...", Gregory laments the Christian defeat in the Battle of Hattin on 4 July 1187, which was accompanied by the execution of the
Hospitallers and the
Templars and the loss of the
True Cross. He argues that Muslims are to be seen as pagans, not Christian heretics, because, in his view, they worship a different God than the Christians and Jews. However, Gregory also attributes the Christians' recent misfortunes to the "iniquity" of the "delinquent" Crusader states. He asserts that all Christians are thus obliged to participate in another crusade as a form of
penance, so as to "placate" God, who would otherwise have chosen to recapture the Holy Land on his own "if he so wished". Moreover, Jesus Christ "taught by his own example that men should lay down their lives for their brothers." Gregory ends by promising an
indulgence to all crusaders, as well as granting them immunity against legal suits and exempting them from interest on their loans. ==Legacy==