Allah plays a pivotal role in Islam. As the creator and guardian of all things, Allah is at the heart of the Islamic faith. For Muslims, knowing Allah is everyone's responsibility and goal, because He is the cornerstone of the existence of Islam. 
In the Qur'an, the classic of Islam, Allah is described as omniscient, omnipresent, one, and supreme being. Each chapter of this Bible is called a sura, and each surah is taught by Allah to the Prophet Muhammad. Many passages in the Quran mention the strength, generosity, and wisdom of Allah. For example, verse 115 of the second chapter of the Qur'an reads: "Allah has sovereignty over all things in heaven and earth." He is the light of the sun and the moon, his is the darkness of night and day, his is the division between sea and land, his is the turbulent ships and the calm wind and waves, his is everything in the world. ”
In Islam, Allah is also described as the terrible Judge. Because Islam believes that everyone is subject to the judgment of Allah. In the Qur'an, Allah is described as a just, steadfast, and undeceived, judge. Muslims believe that they will be accountable for all their deeds on earth and will be judged by Allah. Only those who strive to do good will be pardoned, and those who make mistakes and violate principles will be punished. In addition, Allah in Islam is also seen as a legitimate guide to action. According to the Muslim faith, Allah has given many guidelines to mankind that can help people make good decisions in their daily lives and make people's lives better. 
In conclusion, Allah in Islam is seen as an omniscient, omnipresent, just and noble being. He is the soul of Muslim behavior and thought and the heart of Islam. By observing and following Allah's guidance, Muslims can achieve spiritual growth and accept Allah's judgment. Therefore, understanding and respecting Allah is the duty of every Muslim and the essence of Islam.