In Islamic theology, God (Arabic: Allāh) is the all-powerful and all-knowing creator, sustainer, ordainer, and judge of the universe. Islam emphasizes that God is strictly singular (tawhid) unique (wahid) and inherently One (ahad), all-merciful and omnipotent. According to Islamic teachings, God exists without place and according to the Qur'an, "No vision can grasp Him, but His grasp is over all vision. God is above all comprehension, yet is acquainted with all things" (Qur'an 6:103) God, as referenced in the Qur'an, is the only God and the same God worshiped by members of other Abrahamic religions such as Christianity and Judaism. (29:46).

In Islam, there are 99 Names of God (al-asma al-husna lit. meaning: "The best names") each of which evoke a distinct attribute 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 Compassionate" (al-rahman) and "the Merciful" (al-rahim). Creation and ordering of the universe is seen as an act of prime mercy for which all creatures sing God's glories and bear witness to God's unity and lordship. God responds to those in need or distress whenever they call. Above all, God guides humanity to the right way, “the holy ways.”

Nouman Ali Khan is a Muslim speaker and the CEO and founder of Bayyinah, an Islamic educational institution in the United States.

His early education in Arabic started under in Riyadh, Saudi Arabia and continued in Pakistan. His serious Arabic training began in 1999 in the United States. He has been teaching Modern Standard and Classical Arabic at various venues for several years with over 10,000 students nationwide. Nouman Ali Khan teaches about the religion of Islam through his video speeches. He also frequently speaks at Islamic Circle of North America Conventions about Islam, family, and other life topics.

Abadin Tadia Tjoessoep (1626–1699), more commonly known as Sheikh Yusuf, was an Indonesian muslim of noble descent. In 1693 he was exiled to the Cape of Good Hope which resulted in his establishing Islam in the Cape.

Yusuf was born in Makassar, Indonesia, the nephew of King Biset of Gowa. In 1644 he embarked on the Hajj to Mecca and spent several years in Arabia learning under various pious scholars. During this period the Dutch and British East India Companies were fighting for control of the region due to its lucrative trade in spices and gold. When Yusuf left Arabia in 1664, Makassar had been captured by the Dutch, and he was unable to return home. Instead, he headed for Bantam on the island of Java, where he was welcomed by Sultan Ageng Tirtayasa. Ageng gave Yusuf the hand of one of his daughters in marriage, and made him his chief religious judge and personal advisor. Yusuf stayed in Bantam for 16 years until 1680, when Ageng's son, Pangeran Hajji, rose against his father, possibly at the urgings of the Dutch East India Company. Ageng rallied his forces, including Yusuf, and in 1683 besieged Hajji in his fortress at Soerdesoeang. Ageng was defeated but managed to escape capture, along with an entourage of about 5,000, among them the 57-year-old Yusuf. Ageng was captured later that year but Yusuf managed to escape a second time and continued the resistance.

Yusuf Estes (born in 1944) is an American Muslim preacher and teacher who converted from Christianity to Islam in 1991. He was a Muslim Chaplain for the United States Bureau of Prisons through the 1990s. He was a Muslim Delegate to the United Nations World Peace Conference for Religious Leaders held at the U.N. in September 2000.

Active in Islamic missionary work in the United States, Estes is often featured as guest presenter and keynote speaker at various Islamic events as well as frequently appearing on various Islamic satellite TV channels. Estes takes a dim view of today's public school system in the United States for any children, and highly recommends schools where they might receive a religious education combined with more advanced scholastic education.

Yusuf Estes was born in Ohio, and was raised in Houston, Texas in a Anglo-Saxon Protestant family. From 1962 to 1990, his career was in the music, entertainment and marketing fields. He also taught music and served as a music minister. He owned several musical instrument companies including the Estes Piano and Organ Company. He produced and directed live entertainment programs in the United States from the mid 1960s until his last endeavor for cable TV in Florida, entitled 'Estes Music Jamboree'.

Zakir Abdul Karim Naik (Urdu: ذاکر عبدالکریم نائیک; born 18 October 1965) is an Indian public speaker on the subject of Islam and comparative religion. He is the founder and president of the Islamic Research Foundation (IRF), a non-profit organisation that owns the Peace TV channel based in Dubai, UAE. He is sometimes referred to as a televangelist. Before becoming a public speaker, he trained as a doctor. He has written two booklets on Islam and comparative religion. He is regarded as an exponent of the Salafi ideology; he places a strong emphasis on individual scholarship and the rejection of "blind Taqlid", which has led him to repudiate the relevance of sectarian or Madh'hab designations, all the while reaffirming their importance.

Zakir Abdul Karim Naik was born on 18 October 1965 in Mumbai, India. He attended St. Peter's High School in Mumbai. Later he enrolled at Kishinchand Chellaram College, before studying medicine at Topiwala National Medical College and Nair Hospital and later the University of Mumbai, where he obtained a Bachelor of Medicine and Surgery (MBBS). His wife, Farhat Naik, works for the women's section of the IRF.