It is not for a human [prophet] that Allah should give him the Scripture and authority and prophethood and then he would say to the people,“Be servants to me rather than Allah,” but [instead, he would say], “Be pious scholars of the Lord because of what you have taught of the Scripture and because of what you have studied.” Nor could he order you to take the angels and prophets as lords. Would he order you to disbelief after you had been Muslims? [Quran 3:79-80]
This verse basically describes the infallibility of the Prophets of Allah. It says that a person on whom Allah invests with the Book,Wisdom and the power of making decisions, and places him on the great station of Prophethood is always faithful to his mission when he communicates the divine message to people and calls on them to become Allah’s humble and faithful servants. Being a Prophet of God it doesn’t befits him or rather he can not move people away from the worshipping of only one God and starts asking them to become his own worshippers or the worshippers of some other creatures.Therefore it is not for a person whom Allah has given the Book, knowledge in the Law and Prophethood to proclaim to the people, “Worship me instead of Allah,” meaning, along with Allah.
In this verse there is a necessary refutation of the Christians who claim that it was Jesus Christ who asked them to have belief in his sonship and godhead. Jesus Christ being a prophet simply can’t ask people to worship Him or a Spook or a Ghost.This criticism also refers to the ignorant rabbis, priests and teachers of misguidance, unlike the Messengers and their sincere knowledgeable followers who implement their knowledge; for they only command what Allah commands them, as their honorable Messengers conveyed to them. They also forbid what Allah forbade for them, by the words of His honorable Messengers. We also know from Qur’an that Allah has sent Prophets every time commanding to worship Him(Allah) alone and avoid false deities.As we read in the Qur’an:
And We sent not before you any messenger except that We revealed to him that, “There is no deity except Me, so worship Me.” [Qur’an 21:25]
And We certainly sent into every nation a messenger, [saying], “Worship Allah and avoid Taghut…”[Qur’an 16:36]
And ask those We sent before you of Our messengers; have We made besides the Most Merciful deities to be worshipped? [Qur’an 43:45]
Allah has also warned that if anybody claims that He is the God besides him then he will be thrown to the hellfire. As we read in Qur’an:
And whoever of them should say, “Indeed, I am a god besides Him”- that one We would recompense with Hell. Thus do We recompense the wrongdoers.[Qur’an 21:29]
So, Jesus Christ being the Prophet of Allah can never ever claim that he is God or Son of God and Holy Ghost is also the Godhead. The Messengers, may Allah’s peace and blessings be on all of them, are the emissaries between Allah and His creation, conveying Allah’s Message and Trust.The Prophet does not command worshipping other than Allah, whether a sent Messenger or an angel. He would not do that, for whoever calls to worshipping other than Allah, will have called to Kufr. The Prophets only call to Iman which commands worshipping Allah Alone without partners.
So the belief of the Christians who believe that Jesus is the Son of God and also one of the Godhead in Trinity, and also Holy Ghost is also a godhead is thoroughly refuted by the above two ayaats of The Holy Qur’an. Also Allah mentions in the Qur’an that He is the only deity, and that He has no partners or equals. He is Allah, the One and Only, the Sustainer, and there is no deity worthy of worship except Him. He is the Most Gracious ـ Ar-Rahman, the Most Merciful ـ Ar-Rahim. As we read in Qur’an:
And your god is one God. There is no deity [worthy of worship] except Him, the Entirely Merciful, the Especially Merciful.[Qur’an 2:163]