In Islam, God is believed to be the only real supreme being, all-powerful and all knowing Creator, Sustainer, Ordainer, and Judge of the universe Islam puts a heavy emphasis on the conceptualization of God as strictly singular (tawhid). He is unique (wahid) and inherently one (ahad), all-merciful and omnipotent. According to the tradition of Islam there are 99 Names of God (al-asma al-husna lit. meaning: "The best names") each of which evoke a distinct characteristic of God. All these names refer to Allah, the supreme and all-comprehensive divine name. Among the 99 names of God, the most famous and most frequent of these names are "the Merciful" (al-rahman) and "the Compassionate" (al-rahim).
Creation and ordering of the universe is seen as an act of prime mercy for which all creatures sing his glories and bear witness to his unity and lordship. According to the Islamic teachings, God is present everywhere without having incarnated in anything. According to the Qur'an, "No vision can grasp Him, but His grasp is over all vision. He is above all comprehension, yet is acquainted with all things" (Qur'an 6:103)
God in Islam is not only majestic and sovereign, but also a personal God: According to the Qur'an, he is nearer to person than person's jugular vein. He responds to those in need or distress whenever they call him. Above all, he guides humanity to the right way, “the straight path.”
Oneness of God or Tawḥīd is the act of believing and affirming that God (Arabic: Allah) is one and unique (wāḥid). The Qur'an asserts the existence of a single and absolute truth that transcends the world; a unique and indivisible being who is independent of the entire creation. According to the Qur'an:
"Say: He is Allah, the One and Only; Allah, the Eternal, Absolute; He begetteth not, nor is He begotten; And there is none like unto Him." (Sura, Yusuf Ali) Thy Lord is self-sufficient, full of Mercy: if it were His will, He could destroy you, and in your place appoint whom He will as your successors, even as He raised you up from the posterity of other people." (Sura , Yusuf Ali)According to Vincent J. Cornell, the Qur'an also provides a monist image of God by describing the reality as a unified whole, with God being a single concept that would describe or ascribe all existing things:"He is the First and the Last, the Outward and the Inward; He is the Knower of everything (Sura)" Some Muslims have however vigorously criticized interpretations that would lead to a monist view of God for what they see as blurring the distinction between the creator and the creature, and its incompatibility with the radical monotheism of Islam.
The indivisibility of God implies the indivisibility of God's sovereignty which in turn leads to the conception of universe as a just and coherent moral universe rather than an existential and moral chaos (as in polytheism). Similarly the Qur'an rejects the binary modes of thinking such as the idea of duality of God by arguing that both good and evil generate from God's creative act and that the evil forces have no power to create anything. God in Islam is a universal god rather than a local, tribal or parochial one; an absolute who integrates all affirmative values and brooks no evil.
Tawhid constitutes the foremost article of the Muslim profession. To attribute divinity to a created entity is the only unpardonable sin mentioned in the Qur'an. Muslims believe that the entirety of the Islamic teaching rests on the principle of Tawhid.
Islamic theology makes a distinction between the attributes of God and the divine essence.
The Qur'an describes God as being fully aware of everything that happens in the universe, including private thoughts and feelings, and asserts that nothing can be hidden from him:
God, says the Qur'an, “loves those who do good,” and two passages in the Qur'an express a mutual love between God and man, but the Judeo-Christian precept to “love God with all thy heart” is nowhere formulated in Islam. The emphasis is rather on God's inscrutable sovereignty, to which one must abandon oneself. In essence, the “surrender to Allah” (Islam) is the religion itself.God in Islam vs God in Christianity Islam vigorously rejects the Christian belief that God is three persons in one substance (see Trinity). In Islamic conception of God, no intermediaries between God and the creation exists and God's presence is believed to be everywhere, and yet he is not incarnated in anything.
The Christian West perceived Islam as a heathen religion during the first and second Crusade. Muhammad was viewed as a kind of demon or false god worshipped with Apollyon and Termangant in an unholy trinity. The traditional view of Christianity however was that Muhammad's God is the same as the true God. Ludovico Marracci (1734), the confessor of Pope Innocent XI, states:
That both Mohammed and those among his followers who are reckoned orthodox, had and continue to have just and true notions of God and his attributes (always excepting their obstinate and impious rejection of the Trinity), appears so plain from the Koran itself and all the Mohammaedan divines, that it would be loss of time to refute those who suppose the God of Mohammed to be different from the true God.
Numerous passages in the Old testament refer to God's love. A central theme in the New Testament is God's love in sending of Jesus. In Islam, God's love is shown through his signs and the creation of the Earth where humans can live in moderate comfort.
"O ye people! Adore your Guardian-Lord, who created you and those who came before you, that ye may have the chance to learn righteousness; Who has made the Earth your couch, and the heavens your canopy; and sent down rain from the heavens; and brought forth therewith fruits for your sustenance; then set not up rivals unto Allah when ye know (the truth)." (Sura, Yusuf Ali)The most common Muslim invocation of God is 'the Most-Gracious, the Most-Merciful'. Two other of the "beautiful names" of God are 'the very Loving' (wadud) and 'the constant Giver'(wahhāb). William Montgomery Watt holds that Christianity has however much more emphasis on God's active role as a shepherd who goes out to look for the lost sheep and rescuing it. On the other hand, Islam retains some hope for those who have gone astray. In Islam, Watt says, God has provided the opportunity for each community to attain the great success (i.e. the life in Heaven) by sending messengers or prophets to them. Islam has also developed a doctrine of intercession of Muhammad on the Last Day that would be received favorably, though the sinners might be punished for their sins either in this life or for a limited time in hell.