The word(s) "erred" appears 26 time(s) in 24 verse(s) in Quran in Mohsin Khan translation.

(1) O Children of Israel! Remember My Favour which I bestowed upon you and that I preferred you to the 'Alamin [mankind and jinn (of your time period, in the past)].

(2) O Children of Israel! Remember My Favour which I bestowed upon you and that I preferred you to the 'Alamin [mankind and jinn (of your time-period, in the past)].

(3) Those Messengers! We preferred some of them to others; to some of them Allah spoke (directly); others He raised to degrees (of honour); and to 'Îsa (Jesus), the son of Maryam (Mary), We gave clear proofs and evidence, and supported him with Ruh-ul-Qudus [Jibrael (Gabriel)]. If Allah had willed, succeeding generations would not have fought against each other, after clear Verses of Allah had come to them, but they differed - some of them believed and others disbelieved. If Allah had willed, they would not have fought against one another, but Allah does what He likes.

(4) Indeed Allah conferred a great favour on the believers when He sent among them a Messenger (Muhammad صلى الله عليه وسلم) from among themselves, reciting unto them His Verses (the Qur'an), and purifying them (from sins by their following him), and instructing them (in) the Book (the Qur'an) and Al-Hikmah [the wisdom and the Sunnah of the Prophet صلى الله عليه وسلم (i.e. his legal ways, statements, acts of worship)], while before that they had been in manifest error.

(5) Or do they envy men (Muhammad صلى الله عليه وسلم and his followers) for what Allah has given them of His Bounty? Then We had already given the family of Ibrahim (Abraham) the Book and Al-Hikmah (As-Sunnah - Divine Revelation to those Prophets not written in the form of a book), and conferred upon them a great kingdom.

(6) When there comes to them some matter touching (public) safety or fear, they make it known (among the people); if only they had referred it to the Messenger or to those charged with authority among them, the proper investigators would have understood it from them (directly). Had it not been for the Grace and Mercy of Allah upon you, you would have followed Shaitan (Satan), save a few of you.

(7) O you who believe! When you go (to fight) in the Cause of Allah, verify (the truth), and say not to anyone who greets you (by embracing Islam): "You are not a believer"; seeking the perishable goods of the worldly life. There are much more profits and booties with Allah. Even as he is now, so were you yourselves before till Allah conferred on you His Favours (i.e. guided you to Islam), therefore, be cautious in discrimination. Allah is Ever Well-Aware of what you do.

(8) Not equal are those of the believers who sit (at home), except those who are disabled (by injury or are blind or lame), and those who strive hard and fight in the Cause of Allah with their wealth and their lives. Allah has preferred in grades those who strive hard and fight with their wealth and their lives above those who sit (at home). Unto each, Allah has promised good (Paradise), but Allah has preferred those who strive hard and fight, above those who sit (at home) by a huge reward.

(9) And Isma'il (Ishmael) and Al-Yasa' (Elisha), and Yunus (Jonah) and Lut (Lot), and each one of them We preferred above the 'Alamin [mankind and jinn (of their times)].

(10) And (He did forgive also) the three [who did not join the Tabuk expedition whose case was deferred (by the Prophet صلى الله عليه وسلم)] (for Allah's Decision) till for them the earth, vast as it is, was straitened and their ownselves were straitened to them, and they perceived that there is no fleeing from Allah, and no refuge but with Him. Then, He forgave them (accepted their repentance), that they might beg for His pardon [repent (unto Him)] Verily, Allah is the One Who forgives and accepts repentance, Most Merciful.