The word(s) "gain" appears 419 time(s) in 395 verse(s) in Quran in Muhammad Habib Shakir translation.

(191) Surely Allah is with those who guard (against evil) and those who do good (to others).

(192) Then We gave you back the turn to prevail against them, and aided you with wealth and children and made you a numerous band.

(193) If you do good, you will do good for your own souls, and if you do evil, it shall be for them. So when the second promise came (We raised another people) that they may bring you to grief and that they may enter the mosque as they entered it the first time, and that they might destroy whatever they gained ascendancy over with utter destruction.

(194) It may be that your Lord will have mercy on you, and if you again return (to disobedience) We too will return (to punishment), and We have made hell a prison for the unbelievers.

(195) Read your book; your own self is sufficient as a reckoner against you this day.

(196) And when We wish to destroy a town, We send Our commandment to the people of it who lead easy lives, but they transgress therein; thus the word proves true against it, so We destroy it with utter destruction.

(197) And beguile whomsoever of them you can with your voice, and collect against them your forces riding and on foot, and share with them in wealth and children, and hold out promises to them; and the Shaitan makes not promises to them but to deceive:

(198) Or, do you feel secure that He will (not) take you back into it another time, then send on you a fierce gale and thus drown you on account of your ungratefulness? Then you shall not find any aider against Us in the matter.

(199) And surely they had purposed to turn you away from that which We have revealed to you, that you should forge against Us other than that, and then they would certainly have taken you for a friend.

(200) In that case We would certainly have made you to taste a double (punishment) in this life and a double (punishment) after death, then you would not have found any helper against Us.