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

(91) They do not ask leave of you who believe in Allah and the latter day (to stay away) from striving hard with their property and their persons, and Allah knows those who guard (against evil).

(92) And (as for) the believing men and the believing women, they are guardians of each other; they enjoin good and forbid evil and keep up prayer and pay the poor-rate, and obey Allah and His Apostle; (as for) these, Allah will show mercy to them; surely Allah is Mighty, Wise.

(93) They swear by Allah that they did not speak, and certainly they did speak, the word of unbelief, and disbelieved after their Islam, and they had determined upon what they have not been able to effect, and they did not find fault except because Allah and His Apostle enriched them out of His grace; therefore if they repent, it will be good for them; and if they turn back, Allah will chastise them with a painful chastisement in this world and the hereafter, and they shall not have in the land any guardian or a helper.

(94) It is not (attributable to) Allah that He should lead a people astray after He has guided them; He even makes clear to them what they should guard against; surely Allah knows all things.

(95) Surely Allah's is the kingdom of the heavens and the earth; He brings to life and causes to die; and there is not for you besides Allah any guardian or Helper.

(96) O you who believe! fight those of the unbelievers who are near to you and let them find in you hardness; and know that Allah is with those who guard (against evil).

(97) Most surely in the variation of the night and the day, and what Allah has created in the heavens and the earth, there are signs for a people who guard (against evil).

(98) Say: Who gives you sustenance from the heaven and the earth? Or Who controls the hearing and the sight? And Who brings forth the living from the dead, and brings forth the dead from the living? And Who regulates the affairs? Then they will say: Allah. Say then: Will you not then guard (against evil)?

(99) Those who believe and guarded (against evil):

(100) These shall not escape in the earth, nor shall they have any guardians besides Allah; the punishment shall be doubled for them, they could not bear to hear and they did not see.