The word(s) "one" appears 1507 time(s) in 1150 verse(s) in Quran in Mohsin Khan translation.

(581) And We made them leaders, guiding (mankind) by Our Command, and We revealed to them the doing of good deeds, performing Salat (Iqamat-as-Salat), and the giving of Zakat and of Us (Alone) they were the worshippers.

(582) And (remember) Dhun-Nun (Jonah), when he went off in anger, and imagined that We shall not punish him (i.e. the calamities which had befallen him)! But he cried through the darkness (saying): La ilaha illa Anta [none has the right to be worshipped but You (O, Allah)], Glorified (and Exalted) be You [above all that (evil) they associate with You]! Truly, I have been of the wrong-doers."

(583) So We answered his call, and delivered him from the distress. And thus We do deliver the believers (who believe in the oneness of Allah, abstain from evil and work righteousness).

(584) Truly! This, your Ummah [Shari'ah or religion (Islamic Monotheism)] is one religion, and I am your Lord, therefore worship Me (Alone). [Tafsir Ibn Kathir]

(585) So whoever does righteous good deeds while he is a believer (in the oneness of Allah - Islamic Monotheism), his efforts will not be rejected. Verily We record it for him (in his Book of deeds).

(586) 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)?"

(587) The Day you shall see it, every nursing mother will forget her nursling, and every pregnant one will drop her load, and you shall see mankind as in a drunken state, yet they will not be drunken, but severe will be the Torment of Allah.

(588) See you not that whoever is in the heavens and whoever is on the earth, and the sun, and the moon, and the stars, and the mountains, and the trees, and Ad-Dawabb [moving (living) creatures, beasts], and many of mankind prostrate themselves to Allah. But there are many (men) on whom the punishment is justified. And whomsoever Allah disgraces, none can honour him. Verily, Allah does what He wills.

(589) These two opponents (believers and disbelievers) dispute with each other about their Lord: then as for those who disbelieved, garments of fire will be cut out for them, boiling water will be poured down over their heads.

(590) Truly, Allah will admit those who believe (in the oneness of Allah - Islamic Monotheism) and do righteous good deeds, to Gardens underneath which rivers flow (in Paradise), wherein they will be adorned with bracelets of gold and pearls and their garments therein will be of silk.