The first instructions given by Our Lord on the Mount of Beatitudes, so called from the opening topic of the sermon and supposed to be Karn Hattin, or the Horns of the village Hattin nearby. This mountain Isaiah 1,816 feet high, but the sermon was preached on the upland at the base. The sermon takes up three chapters of Saint Matthew (5,6, 7) and contains a complete outline of Christianity. See also the article on the beatitudes.