The word(s) "promise" appears 137 time(s) in 117 verse(s) in Quran in Mohsin Khan translation.

(21) And Ibrahim's (Abraham) invoking (of Allah) for his father's forgiveness was only because of a promise he [Ibrahim (Abraham)] had made to him (his father). But when it became clear to him [Ibrahim (Abraham)] that he (his father) is an enemy of Allah, he dissociated himself from him. Verily Ibrahim (Abraham) was Awwah (one who invokes Allah with humility, glorifies Him and remembers Him much) and was forbearing. (Tafsir Al-Qurtubi) .

(22) To Him is the return of all of you. The promise of Allah is true. It is He Who begins the creation and then will repeat it, that He may reward with justice those who believed (in the Oneness of Allah - Islamic Monotheism) and did deeds of righteousness. But those who disbelieved will have a drink of boiling fluids and painful torment because they used to disbelieve.

(23) Whether We show you (in your lifetime, O Muhammad صلى الله عليه وسلم) some of what We promise them (the torment), or We cause you to die - still unto Us is their return, and moreover, Allah is Witness over what they used to do.

(24) And they say: "When will be this promise (the torment or the Day of Resurrection), if you speak the truth?"

(25) No doubt, surely, all that is in the heavens and the earth belongs to Allah. No doubt, surely, Allah's promise is true. But most of them know not.

(26) Can they (Muslims) who rely on a clear proof (the Qur'an) from their Lord, and whom a witness [Jibril (Gabriel عليه السلام)] from Him recites (follows) it (can they be equal with the disbelievers); and before it, came the Book of Musa (Moses), a guidance and a mercy, they believe therein, but those of the sects (Jews, Christians and all the other non-Muslim nations) that reject it (the Qur'an), the Fire will be their promised meeting-place. So be not in doubt about it (i.e. those who denied Prophet Muhammad صلى الله عليه و سلم and also denied all that which he brought from Allah. Surely, they will enter Hell). Verily, it is the truth from your Lord, but most of the mankind believe not.

(27) And Nuh (Noah) called upon his Lord and said, "O my Lord! Verily, my son is of my family! And certainly, Your promise is true, and You are the Most Just of the judges."

(28) But they killed her. So he said: "Enjoy yourselves in your homes for three days. This is a promise (i.e. a threat) that will not be belied."

(29) And if there had been a Qur'an with which mountains could be moved (from their places), or the earth could be cloven asunder, or the dead could be made to speak (it would not have been other than this Qur'an). But the decision of all things is certainly with Allah. Have not then those who believed yet known that had Allah willed, He could have guided all mankind? And a disaster will not cease to strike those who disbelieved because of their (evil) deeds or it (i.e. the disaster) settles close to their homes, until the promise of Allah comes to pass. Certainly, Allah breaks not His promise.

(30) The description of the Paradise which the Muttaqun (the pious - See V.2:2) have been promised: Underneath it rivers flow, its provision is eternal and so is its shade; this is the end (final destination) of the Muttaqun (the pious - See V.2:2), and the end (final destination) of the disbelievers is Fire. (See Verse 47:15)