Shari’ah Law is the law of God according to the teaching of Islâm. To Arabic-speaking people, sharia (/ʃɑʃˈriʃɑʃ ; also shari’a, sharīʿah; Arabic: شريعة šarīʿah, IPA: [ʃaˈriʃʃa], “legislation”) means the moral code and religious law of the prophetic religion of Islâm. Its purpose is to govern the actions and thoughts of all Muslims and to enforce the law of God over all other people on earth. To succeed in this objective, a Caliph is appointed to create a caliphate to administer the correct implementation of the law of God and to act as a voice for God on earth in relation to God’s laws. A Caliph is a leader of an Islâmic polity, regarded as a successor of Muhammad, and by tradition always male. On the other hand, an Ayatollah has a very similar role in a Shia society. He is regarded as a sign from Allâh who holds this high-ranking title given to Usuli Twelver Shī‘ah clerics. Those who carry the title are experts in Islâmic studies such as jurisprudence, ethics, and philosophy, and usually teach in Islâmic seminaries.