The word(s) "guard" appears 249 time(s) in 233 verse(s) in Quran in Muhammad Habib Shakir translation.

(61) And this world's life is naught but a play and an idle sport and certainly the abode of the hereafter is better for those who guard (against evil); do you not then understand?

(62) And warn with it those who fear that they shall be gathered to their Lord-- there is no guardian for them, nor any intercessor besides Him-- that they may guard (against evil).

(63) And nought of the reckoning of their (deeds) shall be against those who guard (against evil), but (theirs) is only to remind, haply they may guard.

(64) And leave those who have taken their religion for a play and an idle sport, and whom this world's life has deceived, and remind (them) thereby lest a soul should be given up to destruction for what it has earned; it shall not have besides Allah any guardian nor an intercessor, and if it should seek to give every compensation, it shall not be accepted from it; these are they who shall be given up to destruction for what they earned; they shall have a drink of boiling water and a painful chastisement because they disbelieved.

(65) They shall have the abode of peace with their Lord, and He is their guardian because of what they did.

(66) And (know) that this is My path, the right one therefore follow it, and follow not (other) ways, for they will lead you away from His way; this He has enjoined you with that you may guard (against evil).

(67) And this is a Book We have revealed, blessed; therefore follow it and guard (against evil) that mercy may be shown to you.

(68) Follow what has been revealed to you from your Lord and do not follow guardians besides Him, how little do you mind.

(69) O children of Adam! We have indeed sent down to you clothing to cover your shame, and (clothing) for beauty and clothing that guards (against evil), that is the best. This is of the communications of Allah that they may be mindful.

(70) O children of Adam! let not the Shaitan cause you to fall into affliction as he expelled your parents from the garden, pulling off from them both their clothing that he might show them their evil inclinations, he surely sees you, he as well as his host, from whence you cannot see them; surely We have made the Shaitans to be the guardians of those who do not believe.