The testimony of tradition (Some quotes came from this link)
While none of the preceding verses definitively prove that Mary has ever sinned, several are suggestive that she had and two of them elevate the importance of discipleship above simply being Christ’s mother. Not surprisingly, the ancient church did not take a definitive stand on the issue because the Scriptural evidence did not demand it. However, quite a few Church Fathers appear to credit Mary with wrongdoing or insufficient faith:
Examples of insufficient faith:
He was justly indignant, that persons so very near to Him stood without, while strangers were within hanging on His words, especially as they wanted to call Him away from the solemn work He had in hand. He did not so much deny as disavow them. And therefore, when to the previous question, Who is my mother, and who are my brethren? He added the answer None but they who hear my words and do them, He transferred the names of blood-relationship to others, whom He judged to be more closely related to Him by reason of their faith (Tertullian, Against Marcion, Book 4, Ch. 19).
For, doubtless, some such train of thought as this passed through her mind: ‘I conceived Him That is mocked upon the Cross. He said, indeed, that He was the true Son of Almighty God, but it may be that He was deceived; He may have erred when He said: I am the Life. How did His crucifixion come to pass?and how was He entangled in the snares of His murderers? How was it that He did not prevail over the conspiracy of His persecutors against Him? And why does He not come down from the Cross, though He bade Lazarus return to life, and struck all Judaea with amazement by His miracles?” The woman, as is likely, not exactly understanding the mystery, wandered astray into some such train of thought(Cyril of Alexandria, Commentary on John, Book 12).
Wrongdoing:
And therefore He answered thus in this place, and again elsewhere, Who is My mother, and who are My brethren? Matthew 12:48, because they did not yet think rightly of Him; and she, because she had borne Him, claimed, according to the custom of other mothers, to direct Him in all things, when she ought to have reverenced and worshiped Him…And so this was a reason why He rebuked her on that occasion, saying, Woman, what have I to do with you?instructing her for the future not to do the like; because, though He was careful to honor His mother, yet He cared much more for the salvation of hersoul, and for the doing good to the many, for which He took upon Him the flesh (John Chrysostom, Homilies on the Gospel of John, Homily 21).
They have no wine. For she desired both to do them a favor, and through her Son to render herself more conspicuous; perhaps too she had some humanfeelings, like His brethren, when they said, Show yourself to the world John 17:4, desiring to gain credit from His miracles. Therefore He answered somewhat vehemently” (John Chrysostom, Homilies on the Gospel of John, Homily 21).
…St Hilary in his Annotations on the 20th verse of the cxixth [119th] Psalm, “My soul breaketh for the longing that it hath unto thy judgments,” applies it unto the future judgment and among other observations has this passage, “Seeing we must render an account for every idle word do we desire the day of judgment in which that unwearied fire is to be passed through in which those grievous punishments are to be undergone for the expiating of a soul from sin [1 Cor 3:12], a sword shall pass through the soul of the blessed Virgin Mary that the thoughts of many hearts may be revealed [Luke 2:35]. If that Virgin who bore God is to come into the severity of the judgment will any one dare desire to be judged by God?” (Excerpt of Hilary of Poitiers Homily on Psalm 119).
Although they [Christ’s family] had like the rest power to come in, yet they abstain from all approach to Him, “for he came unto his own, and his own received him not” (Hilary of Poitiers commenting of Matt 12:50).
Links to Church Father quotes are here.
While none of the preceding verses definitively prove that Mary has ever sinned, several are suggestive that she had and two of them elevate the importance of discipleship above simply being Christ’s mother. Not surprisingly, the ancient church did not take a definitive stand on the issue because the Scriptural evidence did not demand it. However, quite a few Church Fathers appear to credit Mary with wrongdoing or insufficient faith:
Examples of insufficient faith:
He was justly indignant, that persons so very near to Him stood without, while strangers were within hanging on His words, especially as they wanted to call Him away from the solemn work He had in hand. He did not so much deny as disavow them. And therefore, when to the previous question, Who is my mother, and who are my brethren? He added the answer None but they who hear my words and do them, He transferred the names of blood-relationship to others, whom He judged to be more closely related to Him by reason of their faith (Tertullian, Against Marcion, Book 4, Ch. 19).
For, doubtless, some such train of thought as this passed through her mind: ‘I conceived Him That is mocked upon the Cross. He said, indeed, that He was the true Son of Almighty God, but it may be that He was deceived; He may have erred when He said: I am the Life. How did His crucifixion come to pass?and how was He entangled in the snares of His murderers? How was it that He did not prevail over the conspiracy of His persecutors against Him? And why does He not come down from the Cross, though He bade Lazarus return to life, and struck all Judaea with amazement by His miracles?” The woman, as is likely, not exactly understanding the mystery, wandered astray into some such train of thought(Cyril of Alexandria, Commentary on John, Book 12).
Wrongdoing:
And therefore He answered thus in this place, and again elsewhere, Who is My mother, and who are My brethren? Matthew 12:48, because they did not yet think rightly of Him; and she, because she had borne Him, claimed, according to the custom of other mothers, to direct Him in all things, when she ought to have reverenced and worshiped Him…And so this was a reason why He rebuked her on that occasion, saying, Woman, what have I to do with you?instructing her for the future not to do the like; because, though He was careful to honor His mother, yet He cared much more for the salvation of hersoul, and for the doing good to the many, for which He took upon Him the flesh (John Chrysostom, Homilies on the Gospel of John, Homily 21).
They have no wine. For she desired both to do them a favor, and through her Son to render herself more conspicuous; perhaps too she had some humanfeelings, like His brethren, when they said, Show yourself to the world John 17:4, desiring to gain credit from His miracles. Therefore He answered somewhat vehemently” (John Chrysostom, Homilies on the Gospel of John, Homily 21).
…St Hilary in his Annotations on the 20th verse of the cxixth [119th] Psalm, “My soul breaketh for the longing that it hath unto thy judgments,” applies it unto the future judgment and among other observations has this passage, “Seeing we must render an account for every idle word do we desire the day of judgment in which that unwearied fire is to be passed through in which those grievous punishments are to be undergone for the expiating of a soul from sin [1 Cor 3:12], a sword shall pass through the soul of the blessed Virgin Mary that the thoughts of many hearts may be revealed [Luke 2:35]. If that Virgin who bore God is to come into the severity of the judgment will any one dare desire to be judged by God?” (Excerpt of Hilary of Poitiers Homily on Psalm 119).
Although they [Christ’s family] had like the rest power to come in, yet they abstain from all approach to Him, “for he came unto his own, and his own received him not” (Hilary of Poitiers commenting of Matt 12:50).
Links to Church Father quotes are here.