Tawhid is the concept of monotheism in Islam. It holds God (Allah) is one (wahid) and unique (ahad).

Muslims believe that Allah selected a few men in every age to guide the people. These were the Prophets and Messengers. It is obligatory for Muslims to believe in Prophet Muhammad as the last Prophet of Allah, and it is also obligatory for Muslims to believe that Prophet Jesus (Hazrat Isa) and Prophet Moses (Hazrat Musa) were the messengers of God (Allah).

The Islamic holy books are the records which Muslims believe were dictated by God (Allah) to various prophets. Most notable among these are the Suhuf Ibrahim (Scrolls of Abraham), the Tawrat (Torah) revealed on Prophet Moses, the Zabur (Psalms) revealed on Prophet David, the Injil (the Gospel) revealed on Prophet Jesus, and the last word of God - Qur'an, revealed on Prophet Muhammad (s.a.w).

Angels in Islam are light-based creatures, created from light by God to serve and worship him. They have no free-will like humans. Notable angels in Islam are archangel Gabriel (Jibril) who delivered the Quran from God to Prophet Muhammad and Michael (Mikail).

In Islam, the Last Judgment is referred as Qiyamah. It is the day when all mankind shall be bought back to life and judged for their deeds on this world.

In Islam, "predestination" is the usual English language rendering of a belief that Muslims call al-qada wa al-qadar in Arabic. It is a difficult concept to understand and translate. In Islam, Allah's omniscience doesn't suggest that mankind have no free will. Allah's advance knowledge of what each human will choose with his/her free will is said to not in any way negate the freedom granted to humans.