The Quran clearly states that Allah is our Lord and we should worship Him, which supports the Islamic view of monotheism.

The Quran presents a narrative where Allah is depicted as stating that He is the Lord whom others should serve. In Surah 19:36, Allah is quoted as saying, 'And lo! Allah is my Lord and your Lord. So serve Him.' This raises a significant issue because it implies that Allah is acknowledging a hierarchy where He is subordinate to another being. The context of the verses indicates that this statement is made after a discussion about Jesus, which creates confusion about who is actually speaking. Some Muslims argue that this verse is quoting Jesus, but the surrounding text does not support this interpretation. The Quran's grammatical structure and the flow of the narrative suggest that it is indeed Allah who is speaking, thus presenting a contradiction to the Islamic claim of absolute monotheism. Furthermore, if the Quran is the word of Allah, it should maintain a consistent message, yet this inconsistency raises questions about its divine origin.