The word(s) "err" appears 106 time(s) in 99 verse(s) in Quran in Muhammad Pickthal translation.

(21) No plea had they, when Our terror came unto them, save that they said: Lo! We were wrong-doers.

(22) A party hath He led aright, while error hath just hold over (another) party, for lo! they choose the devils for protecting supporters instead of Allah and deem that they are rightly guided.

(23) The chieftains of his people said: Lo! we see thee surely in plain error.

(24) He said: O my people! There is no error in me, but I am a messenger from the Lord of the Worlds.

(25) He said: Terror and wrath from your Lord have already fallen on you. Would ye wrangle with me over names which ye have named, ye and your fathers, for which no warrant from Allah hath been revealed? Then await (the consequence), lo! I (also) am of those awaiting (it).

(26) And when the terror fell on them they cried: O Moses! Pray for us unto thy Lord, because He hath a covenant with thee. If thou removest the terror from us we verily will trust thee and will let the Children of Israel go with thee.

(27) But when We did remove from them the terror for a term which they must reach, behold! they broke their covenant.

(28) He said: O Moses! I have preferred thee above mankind by My messages and by My speaking (unto thee). So hold that which I have given thee, and be among the thankful.

(29) I shall turn away from My revelations those who magnify themselves wrongfully in the earth, and if they see each token believe it not, and if they see the way of righteousness choose it nor for (their) way, and if they see the way of error choose if for (their) way. That is because they deny Our revelations and are used to disregard them.

(30) Lo! Those who chose the calf (for worship), terror from their Lord and humiliation will come upon them in the life of the world. Thus do We requite those who invent a lie.