In Islamic doctrine, on the Last Day, when the world will come to an end, the dead will be resurrected and a judgment will be pronounced on every person in accordance with his deeds. Although the Qurʾān in the main speaks of a personal judgment, there are several verses that speak of the resurrection of distinct communities that will be judged according to “their own book.” In conformity with this, the Qurʾān also speaks in several passages of the “death of communities,” each one of which has a definite term of life. The actual evaluation, however, will be for every individual, whatever the terms of reference of his performance. In order to prove that the resurrection will occur, the Qurʾān uses a moral and a physical argument. Because not all requital is meted out in this life, a final judgment is necessary to bring it to completion. Physically, God, who is all-powerful, has the ability to destroy and bring back to life all creatures, who are limited and are, therefore, subject to God’s limitless power.

Some Islamic schools deny the possibility of human intercession but most accept it, and in any case God himself, in his mercy, may forgive certain sinners. Those condemned will burn in hellfire, and those who are saved will enjoy the abiding joys of paradise. Hell and heaven are both spiritual and corporeal. Beside suffering in physical fire, the damned will also experience fire “in their hearts.” Similarly, the blessed will experience, besides corporeal enjoyment, the greatest happiness of divine pleasure.

Social service

Because the purpose of human existence is submission to the Divine Will, as is the purpose of every other creature, God’s role in relation to human beings is that of the commander. Whereas the rest of nature obeys God automatically, humans are the only creatures that possess the choice to obey or disobey. With the deep-seated belief in Satan’s existence, humanity’s fundamental role becomes one of moral struggle, which constitutes the essence of human endeavour. Recognition of the unity of God does not simply rest in the intellect but entails consequences in terms of the moral struggle, which consists primarily in freeing oneself of narrowness of mind and smallness of heart. One must go out of oneself and expend one’s possessions for the sake of others.

The doctrine of social service, in terms of alleviating suffering and helping the needy, constitutes an integral part of Islamic teaching. Praying to God and other religious acts are deemed to be incomplete in the absence of active service to the needy. In regard to this matter, the Qurʾānic criticisms of human nature become very sharp: “Man is by nature timid; when evil befalls him, he panics, but when good things come to him he prevents them from reaching others.” It is Satan who whispers into a person’s ears that by spending for others he will become poor. God, on the contrary, promises prosperity in exchange for such expenditure, which constitutes a credit with God and grows much more than the money people invest in usury. Hoarding of wealth without recognizing the rights of the poor is threatened with the direst punishment in the hereafter and is declared to be one of the main causes of the decay of societies in this world. The practice of usury is forbidden.

With this socioeconomic doctrine cementing the bond of faith, there emerges the idea of a closely knit community of the faithful who are declared to be “brothers unto each other.” Muslims are described as “the middle community bearing witness on humankind,” “the best community produced for humankind,” whose function it is “to enjoin good and forbid evil” (Qurʾān). Cooperation and “good advice” within the community are emphasized, and a person who deliberately tries to harm the interests of the community is to be given exemplary punishment. Opponents from within the community are to be fought and reduced with armed force, if issues cannot be settled by persuasion and arbitration.

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Islam

Because the mission of the community is to “enjoin good and forbid evil” so that “there is no mischief and corruption” on earth, the doctrine of jihad is the logical outcome. For the early community it was a basic religious concept. The lesser jihad, or holy striving, means an active struggle using armed force whenever necessary. The object of such striving is not the conversion of individuals to Islam but rather the gaining of political control over the collective affairs of societies to run them in accordance with the principles of Islam. Individual conversions occur as a by-product of this process when the power structure passes into the hands of the Muslim community. In fact, according to strict Muslim doctrine, conversions “by force” are forbidden, because after the revelation of the Qurʾān “good and evil have become distinct,” so that one may follow whichever one may prefer (Qurʾān), and it is also strictly prohibited to wage wars for the sake of acquiring worldly glory, power, and rule. With the establishment of the Muslim empire, however, the doctrine of the lesser jihad was modified by the leaders of the community. Their main concern had become the consolidation of the empire and its administration, and thus they interpreted the teaching in a defensive rather than in an expansive sense. The Khārijite sect, which held that “decision belongs to God alone,” insisted on continuous and relentless jihad, but its followers were virtually destroyed during the internecine wars in the 8th century.

Beside a measure of economic justice and the creation of a strong idea of community, the Prophet Muhammad effected a general reform of Arab society, in particular protecting its weaker segments—the poor, the orphans, the women, and the slaves. Slavery was not legally abolished, but emancipation of slaves was religiously encouraged as an act of merit. Slaves were given legal rights, including the right of acquiring their freedom in return for payment, in installments, of a sum agreed upon by the slave and his master out of his earnings. A slave woman who bore a child by her master became automatically free after her master’s death. The infanticide of girls that was practiced among certain tribes in pre-Islamic Arabia—out of fear of poverty or a sense of shame—was forbidden.

Distinction and privileges based on tribal rank or race were repudiated in the Qurʾān and in the celebrated “Farewell Pilgrimage Address” of the Prophet shortly before his death. All are therein declared to be “equal children of Adam,” and the only distinction recognized in the sight of God is to be based on piety and good acts. The age-old Arab institution of intertribal revenge (called thaʾr)—whereby it was not necessarily the killer who was executed but a person equal in rank to the slain person—was abolished. The pre-Islamic ethical ideal of manliness was modified and replaced by a more humane ideal of moral virtue and piety.

The five pillars

During the earliest decades after the death of the Prophet, certain basic features of the religio-social organization of Islam were singled out to serve as anchoring points of the community’s life and formulated as the “Pillars of Islam.” To these five, the Khārijite sect added a sixth pillar, the jihad, which, however, was not accepted by the general community.