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

(361) And how many a town which rebelled against the commandment of its Lord and His apostles, so We called it to account severely and We chastised it (with) a stern chastisement.

(362) If you both turn to Allah, then indeed your hearts are already inclined (to this); and if you back up each other against him, then surely Allah it is Who is his Guardian, and Jibreel and -the believers that do good, and the angels after that are the aiders.

(363) O Prophet! strive hard against the unbelievers and the hypocrites, and be hard against them; and their abode is hell; and evil is the resort.

(364) Allah sets forth an example to those who disbelieve the wife of Nuh and the wife of Lut: they were both under two of Our righteous servants, but they acted treacherously towards them so they availed them naught against Allah, and it was said: Enter both the fire with those who enter.

(365) Who created the seven heavens one above another; you see no incongruity in the creation of the Beneficent Allah; then look again, can you see any disorder?

(366) Then turn back the eye again and again; your look shall come back to you confused while it is fatigued.

(367) Then some of them advanced against others, blaming each other.

(368) Surely those who guard (against evil) shall have with their Lord gardens of bliss.

(369) Which He made to prevail against them for seven nights and eight days unremittingly, so that you might have seen the people therein prostrate as if they were the trunks of hollow palms.

(370) And if he had fabricated against Us some of the sayings,