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

(31) Had there been therein (in the heavens and the earth) alihah (gods) besides Allah, then verily both would have been ruined. Glorified be Allah, the Lord of the Throne, (High is He) above all that (evil) they associate with Him!

(32) And if any of them should say: "Verily, I am an ilah (a god) besides Him (Allah)," such a one We should recompense with Hell. Thus We recompense the Zalimun (polytheists and wrong-doers).

(33) And when those who disbelieved (in the oneness of Allah) see you (O Muhammad صلى الله عليه وسلم), they take you not except for mockery (saying): "Is this the one who talks (badly) about your gods?" While they disbelieve at the mention of the Most Gracious (Allah). [Tafsir Al-Qurtubi].

(34) They said: "Who has done this to our alihah (gods)? He must indeed be one of the Zalimun (wrong-doers)."

(35) They said: "Are you the one who has done this to our gods, O Ibrahim (Abraham)?"

(36) Say (O Muhammad صلى الله عليه وسلم): "It is revealed to me that your Ilah (god) is only one Ilah (god - Allah). Will you then submit to His Will (become Muslims and stop worshipping others besides Allah)?"

(37) And for every nation We have appointed religious ceremonies, that they may mention the Name of Allah over the beast of cattle that He has given them for food. And your Ilah (god) is one Ilah (god - Allah), so you must submit to Him Alone (in Islam). And (O Muhammad صلى الله عليه وسلم) give glad tidings to the Mukhbitun (those who obey Allah with humility and are humble from among the true believers of Islamic Monotheism),

(38) And whoever invokes (or worships), besides Allah, any other ilah (god), of whom he has no proof; then his reckoning is only with his Lord. Surely! Al-Kafirun (the disbelievers in Allah and in the oneness of Allah, polytheists, pagans, idolaters) will not be successful.

(39) [Fir'aun (Pharaoh)] said: "If you choose an ilah (god) other than me, I will certainly put you among the prisoners."

(40) Is not He (better than your gods) Who responds to the distressed one, when he calls on Him, and Who removes the evil, and makes you inheritors of the earth, generations after generations? Is there any ilah (god) with Allah? Little is that you remember!