God is the name or term attributed to the Supreme Being, Who is the only logical cause of the existence of all created things. God is recognized by His creation that exists all around us, including us; and our own existence is the most potent evidence of the existence of God Himself.
“How can you deny God, when you were dead and He gave you life, then He will put you to death, then He will bring you to life, then to Him you will be returned?” [Qur’an: 02:28]
Simple in-depth observation of the creation around, leads us to conclude that God, who planned and executed such a massive creation of the universe, has to be the possessor of ultimate intelligence, wisdom, planning, ability, and execution. God has to be all powerful, omnipresent, omniscient, supernatural-being that maintains and manages the ‘organizational-balance’ within His creation, which couldn’t have lasted even for a fraction of a microsecond without His perfect execution and sustenance.
When people asked Muhammad (عليه السلام): Who is God? The Almighty God (Allah), sent revelation in the Qur’an: “Say (O Muhammad): He is Allah, the One and Unique. Allah, Who is Eternal (needs none, and all need Him). He neither begets, nor is born. There is none equivalent to Him.” [Qur’an: 112:1-4]. This is a clear statement by God describing Himself to humanity without any room for confusion. God is One and is exalted above everything He creates and He is capable over all things.
“He is Allah: there is no god but He; the Knower of the unseen and the manifest, He is the Most Merciful, the Most Compassionate. He is Allah: there is no god but He: the King, the Holy, the All-Peace, the Giver of security, the Overseer, the Most Mighty, the Overpowering, the All-Great. Exalted be He from whatever they associate with Him. He is Allah, the Planner, Executer and Fashioner of creation. His are the most beautiful names. Whatever is in the heavens and the earth glorifies Him. He is the Most Mighty, the Most Wise.” [Qur’an: 59:22-24].