As soon as Saladin grasped the power of the sword, and obtained the command of armies, he threw off the follies of his youth, and led a new life. He renounced the pleasures of the world, and assumed the character of a saint. His dress was a coarse woollen garment; water was his only drink; and he carefully abstained from everything disapproved of by the Mussulman religion. Five times each day he prostrated himself in public prayer, surrounded by his friends and followers, and his demeanour became grave, serious, and thoughtful. He fought vigorously with spiritual weapons against the temptations of the world; his nights were often spent in watching and meditation, and he was always diligent in fasting and in the study of the Koran. With the same zeal he combated with carnal weapons the foes of Islam, and his admiring brethren gave him the name of _Salah-ed-deen_, "Integrity of Religion," vulgarly called Saladin. At the head of forty thousand horse and foot, he crossed the desert and ravaged the borders of Palestine; the wild Bedouins and the enthusiastic Arabians of the far south were gathered together under his standard, and hastened with holy zeal to obtain the crown of martyrdom in defence of the faith. The long remembered and greatly dreaded Arab shout of onset, _Allah acbar_, GOD _is victorious_, again resounded through the plains and the mountains of Palestine, and the grand religious struggle for the possession of the holy city of Jerusalem, equally reverenced by Mussulmen and by Christians, was once more vigorously commenced. Saladin besieged the fortified city of Gaza, which belonged to the Knights Templars, and was considered to be the key of Palestine towards Egypt. The luxuriant gardens, the palm and olive groves of this city of the wilderness, were destroyed by the wild cavalry of the desert, and the innumerable tents of the Arab host were thickly clustered on the neighbouring sand-hills. The warlike monks of the Temple fasted and prayed, and invoked the aid of the God of battles; the gates of the city were thrown open, and in an unexpected sally upon the enemy's camp they performed such prodigies of valour, that Saladin, despairing of being able to take the place, abandoned the siege, and retired into Egypt.[77] [Sidenote: A. D. 1172.] The year following, Pope Alexander's famous bull, _omne datum optimum_, confirming the previous privileges of the Templars, and conferring upon them additional powers and immunities, was published in England. It commences in the following terms: "Alexander, bishop, servant of the servants of God, to his beloved sons, Odo, Master of the religious chivalry of the Temple, which is situated at Jerusalem, and to his successors, and to all the regularly professed brethren.