The word(s) "guard" appears 60 time(s) in 55 verse(s) in Quran in Muhammad Pickthal translation.

(1) And if ye do it not - and ye can never do it - then guard yourselves against the Fire prepared for disbelievers, whose fuel is of men and stones.

(2) And guard yourselves against a day when no soul will in aught avail another, nor will intercession be accepted from it, nor will compensation be received from it, nor will they be helped.

(3) Knowest thou not that it is Allah unto Whom belongeth the Sovereignty of the heavens and the earth; and ye have not, beside Allah, any guardian or helper?

(4) And the Jews will not be pleased with thee, nor will the Christians, till thou follow their creed. Say: Lo! the guidance of Allah (Himself) is Guidance. And if thou shouldst follow their desires after the knowledge which hath come unto thee, then wouldst thou have from Allah no protecting guardian nor helper.

(5) And guard (yourselves) against a day when no soul will in aught avail another, nor will compensation be accepted from it, nor will intercession be of use to it; nor will they be helped.

(6) And of them (also) is he who saith: "Our Lord! Give unto us in the world that which is good and in the Hereafter that which is good, and guard us from the doom of Fire."

(7) Be guardians of your prayers, and of the midmost prayer, and stand up with devotion to Allah.

(8) Allah is the Protecting guardian of those who believe. He bringeth them out of darkness into light. As for those who disbelieve, their patrons are false deities. They bring them out of light into darkness. Such are rightful owners of the Fire. They will abide therein.

(9) And guard yourselves against a day in which ye will be brought back to Allah. Then every soul will be paid in full that which it hath earned, and they will not be wronged.

(10) O ye who believe! When ye contract a debt for a fixed term, record it in writing. Let a scribe record it in writing between you in (terms of) equity. No scribe should refuse to write as Allah hath taught him, so let him write, and let him who incurreth the debt dictate, and let him observe his duty to Allah his Lord, and diminish naught thereof. But if he who oweth the debt is of low understanding, or weak, or unable himself to dictate, then let the guardian of his interests dictate in (terms of) equity. And call to witness, from among your men, two witnesses. And if two men be not (at hand) then a man and two women, of such as ye approve as witnesses, so that if the one erreth (through forgetfulness) the other will remember. And the witnesses must not refuse when they are summoned. Be not averse to writing down (the contract) whether it be small or great, with (record of) the term thereof. That is more equitable in the sight of Allah and more sure for testimony, and the best way of avoiding doubt between you; save only in the case when it is actual merchandise which ye transfer among yourselves from hand to hand. In that case it is no sin for you if ye write it not. And have witnesses when ye sell one to another, and let no harm be done to scribe or witness. If ye do (harm to them) lo! it is a sin in you. Observe your duty to Allah. Allah is teaching you. And Allah is knower of all things.