The word(s) "mercy" appears 164 time(s) in 156 verse(s) in Quran in Abdullah Yusuf Ali translation.

(21) They thought there would be no trial (or punishment); so they became blind and deaf; yet Allah (in mercy) turned to them; yet again many of them became blind and deaf. But Allah sees well all that they do.

(22) Say: "To whom belongeth all that is in the heavens and on earth?" Say: "To Allah. He hath inscribed for Himself (the rule of) mercy. That He will gather you together for the Day of Judgment, there is no doubt whatever. It is they who have lost their own souls, that will not believe.

(23) "On that day, if the penalty is averted from any, it is due to Allah's mercy; And that would be (Salvation), the obvious fulfilment of all desire.

(24) When those come to thee who believe in Our signs, Say: "Peace be on you: Your Lord hath inscribed for Himself (the rule of) mercy: verily, if any of you did evil in ignorance, and thereafter repented, and amend (his conduct), lo! He is Oft-forgiving, Most Merciful.

(25) Thy Lord is self-sufficient, full of mercy: if it were His will, He could destroy you, and in your place appoint whom He will as your successors, even as He raised you up from the posterity of other people.

(26) If they accuse thee of falsehood, say: "Your Lord is full of mercy all-embracing; but from people in guilt never will His wrath be turned back.

(27) Moreover, We gave Moses the Book, completing (Our favour) to those who would do right, and explaining all things in detail,- and a guide and a mercy, that they might believe in the meeting with their Lord.

(28) And this is a Book which We have revealed as a blessing: so follow it and be righteous, that ye may receive mercy:

(29) Or lest ye should say: "If the Book had only been sent down to us, we should have followed its guidance better than they." Now then hath come unto you a clear (sign) from your Lord,- and a guide and a mercy: then who could do more wrong than one who rejecteth Allah's signs, and turneth away therefrom? In good time shall We requite those who turn away from Our signs, with a dreadful penalty, for their turning away.

(30) They said: "Our Lord! We have wronged our own souls: If thou forgive us not and bestow not upon us Thy mercy, we shall certainly be lost."