The word(s) "keep" appears 94 time(s) in 90 verse(s) in Quran in Mohsin Khan translation.

(41) And let those who find not the financial means for marriage keep themselves chaste, until Allah enriches them of His Bounty. And such of your slaves as seek a writing (of emancipation), give them such writing, if you find that there is good and honesty in them. And give them something (yourselves) out of the wealth of Allah which He has bestowed upon you. And force not your maids to prostitution, if they desire chastity, in order that you may make a gain in the (perishable) goods of this worldly life. But if anyone compels them (to prostitution), then after such compulsion, Allah is Oft-Forgiving, Most Merciful (to those women, i.e. He will forgive them because they have been forced to do this evil act unwillingly).

(42) And whosoever obeys Allah and His Messenger (صلى الله عليه وسلم), fears Allah, and keeps his duty (to Him), such are the successful.

(43) "So fear Allah, keep your duty to Him, and obey me.

(44) "So keep your duty to Allah, fear Him and obey me."

(45) "So fear Allah, keep your duty to Him, and obey me.

(46) "So fear Allah, keep your duty to Him, and obey me.

(47) "And keep your duty to Him, fear Him Who has aided you with all (good things) that you know.

(48) "So fear Allah, keep your duty to Him, and obey me.

(49) "So fear Allah, keep your duty to Him, and obey me.

(50) "So fear Allah, keep your duty to Him, and obey me.