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

(11) And to 'Ad (people, We sent) their brother Hud. He said: "O my people! Worship Allah! You have no other Ilah (god) but Him. (La ilaha illallah: none has the right to be worshipped but Allah). Will you not fear (Allah)?"

(12) And to Thamud (people, We sent) their brother Salih. He said: "O my people! Worship Allah! You have no other Ilah (god) but Him. (La ilaha illallah: none has the right to be worshipped but Allah). Indeed there has come to you a clear sign (the miracle of the coming out of a huge she-camel from the midst of a rock) from your Lord. This she-camel of Allah is a sign unto you; so you leave her to graze in Allah's earth, and touch her not with harm, lest a painful torment should seize you.

(13) And to (the people of) Madyan (Midian), (We sent) their brother Shu'aib. He said: "O my people! Worship Allah! You have no other Ilah (god) but Him. [La ilaha illallah (none has the right to be worshipped but Allah)]." Verily, a clear proof (sign) from your Lord has come unto you; so give full measure and full weight and wrong not men in their things, and do not do mischief on the earth after it has been set in order, that will be better for you, if you are believers.

(14) And We brought the Children of Israel (with safety) across the sea, and they came upon a people devoted to some of their idols (in worship). They said: "O Musa (Moses)! Make for us an ilah (a god) as they have alihah (gods)." He said: "Verily, you are a people who know not (the Majesty and Greatness of Allah and what is obligatory upon you, i.e. to worship none but Allah Alone, the one and the Only god of all that exists)."

(15) They (Jews and Christians) took their rabbis and their monks to be their lords besides Allah (by obeying them in things which they made lawful or unlawful according to their own desires without being ordered by Allah), and (they also took as their Lord) Messiah, son of Maryam (Mary), while they (Jews and Christians) were commanded [in the Taurat (Torah) and the Injeel (Gospel)] to worship none but one Ilah (god - Allah) La ilaha illa Huwa (none has the right to be worshipped but He) . Praise and glory be to Him (far above is He) from having the partners they associate (with Him)."

(16) They said: "O Salih! You have been among us as a figure of good hope (and we wished for you to be our chief) till this [new thing which you have brought that we leave our gods and worship your god (Allah) Alone]! Do you (now) forbid us the worship of what our fathers have worshipped? But we are really in grave doubt as to that to which you invite us (monotheism)."

(17) "O two companions of the prison! Are many different lords (gods) better or Allah, the one, the Irresistible?

(18) "My Lord! You have indeed bestowed on me of the sovereignty, and taught me something of the interpretation of dreams - the (Only) Creator of the heavens and the earth! You are my Wali (Protector, Helper, Supporter, Guardian, god, Lord.) in this world and in the Hereafter. Cause me to die as a Muslim (the one submitting to Your Will), and join me with the righteous."

(19) This (Qur'an) is a Message for mankind (and a clear proof against them), in order that they may be warned thereby, and that they may know that He is the only one Ilah (god - Allah) - (none has the right to be worshipped but Allah) - and that men of understanding may take heed.

(20) Your Ilah (god) is one Ilah (god - Allah, none has the right to be worshipped but He). But for those who believe not in the Hereafter, their hearts deny (the faith in the oneness of Allah), and they are proud.