The word(s) "one god" appears 1 time(s) in 57 verse(s) in Quran in Mohsin Khan translation.

(21) And Allah said (O mankind!): "Take not ilahain (two gods in worship). Verily, He (Allah) is (the) only one Ilah (god). Then, fear Me (Allah جل جلاله) much [and Me (Alone), i.e. be away from all kinds of sins and evil deeds that Allah has forbidden and do all that Allah has ordained and worship none but Allah] .

(22) Say (O Muhammad صلى الله عليه و سلم to these polytheists, pagans): "If there had been other alihah (gods) along with Him as they assert, then they would certainly have sought out a way to the Lord of the Throne (seeking His Pleasures and to be near to Him).

(23) Glorified and Exalted be He! High above (the great falsehood) that they say! (i.e. forged statements that there are other gods along with Allah, but He is Allah, the one, the Self-Sufficient Master, Whom all creatures need. He begets not, nor was He begotten, and there is none comparable or coequal unto Him).

(24) There (on the Day of Resurrection), Al-Walayah (protection, power, authority and kingdom) will be for Allah (Alone), the True god. He (Allah) is the Best for reward and the Best for the final end. (La ilaha illallah- none has the right to be worshipped but Allah).

(25) Do then those who disbelieved think that they can take My slaves [i.e., the angels, Allah's Messengers, 'Îsa (Jesus), son of Maryam (Mary)] as Auliya' (lords, gods, protectors) besides Me? Verily, We have prepared Hell as an entertainment for the disbelievers (in the oneness of Allah - Islamic Monotheism) .

(26) Say (O Muhammad صلى الله عليه وسلم): "I am only a man like you. It has been revealed to me that your Ilah (god) is one Ilah (god - i.e. Allah). So whoever hopes for the Meeting with his Lord, let him work righteousness and associate none as a partner in the worship of his Lord."

(27) He (the father) said: "Do you reject my gods, O Ibrahim (Abraham)? If you stop not (this), I will indeed stone you. So get away from me safely (before I punish you)."

(28) Nay, but they (the so-called gods) will deny their worship of them, and become opponents to them (on the Day of Resurrection).

(29) Musa (Moses) said: "Then go away! And verily, your (punishment) in this life will be that you will say: "Touch me not (i.e. you will live alone exiled away from mankind); and verily (for a future torment), you have a promise that will not fail. And look at your ilah (god) to which you have been devoted. We will certainly burn it, and scatter its particles in the sea."

(30) Your Ilah (god) is only Allah, (the one) La ilaha illa Huwa (none has the right to be worshipped but He). He has full knowledge of all things.