Catena Aurea by St. Thomas Aguinas
Luke CHAP. 6
6:39–4239. And he spake a parable unto them, Can the blind lead the blind? shall they not both fall into the ditch?
40. The disciple is not above his master: but every one that is perfect shall be as his master.
41. And why beholdest thou the mote that is in thy brother’s eye, but perceivest not the beam that is in thine own eye?
42. Either how canst thou say to thy brother, Brother, let me pull out the mote that is in thine eye, when thou thyself beholdest not the beam that is in thine own eye? Thou hypocrite, cast out first the beam out of thine own eye, and then shalt thou see clearly to pull out the mote that is in thy brother’s eye.
CYRIL OF ALEXANDRIA. The Lord added to what had gone before a very necessary parable, as it is said, And he spake a parable to them, for His disciples were the future teachers of the world, and it therefore became them to know the way of a virtuous life, having their minds illuminated as it were by a divine brightness, that they should not be blind leaders of the blind. And then he adds, Can the blind lead the blind? But if any should chance to attain unto an equal degree of virtue with their teachers, let them stand in the measure of their teachers, and follow their footsteps. Hence it follows, The disciple is not above his master. Hence also Paul says, Be ye also followers of me, as I am of Christ (1 Cor. 1:11.). Since Christ therefore judged not, why judgest thou? for He came not to judge the world, but to shew mercy.
THEOPHYLACT. Or else, If thou judgest another, and in the very same way sinnest thyself, art not thou like to the blind leading the blind? For how canst thou lead him to good when thou also thyself committest sin? For the disciple is not above his master. If therefore thou sinnest, who thinkest thyself a master and guide, where will he be who is taught and led by thee? For he will be the perfect disciple who is as his master.
BEDE. Or the sense of this sentence depends upon the former, in which we are enjoined to give alms, and forgive injuries. If, says He, anger has blinded thee against the violent, and avarice against the grasping, how canst thou with thy corrupt heart cure his corruption? If even thy Master Christ, who as God might revenge His injuries, chose rather by patience to render His persecutors more merciful, it is surely binding on His disciples, who are but men, to follow the same rule of perfection.
AUGUSTINE. (de Qu. Ev. l. ii. q. 9.) Or, He has added the words, Can the blind, lead the blind, in order that they might not expect to receive from the Levites that measure of which He says, They shall give into thy bosom, because they gave tithes to them. And these He calls blind, because they received not the Gospel, that the people might the rather now begin to hope for that reward through the disciples of the Lord, whom wishing to point out as His imitators, He added, The disciple is not above his master.
THEOPHYLACT. But the Lord introduces another parable taken from the same figure, as follows, But why seest thou the mote (that is, the slight fault) which is in thy brother’s eye, but the beam which is in thine own eye (that is, thy great sin) thou regardest not?
BEDE. Now this has reference to the previous parable, in which He forewarned them that the blind cannot be led by the blind, that is, the sinner corrected by the sinner. Hence it is said, Or, how canst thou say to thy brother, Brother let me cast out the mote that is in thine eye, if thou seest not the beam that is in thine own eye?
CYRIL OF ALEXANDRIA. As if He said, How can he who is guilty of grievous sins, (which He calls the beam,) condemn him who has sinned only slightly, or even in some cases not at all? For this the mote signifies.
THEOPHYLACT. But these words are applicable to all, and especially to teachers, who while they punish the least sins of those who are put under them, leave their own unpunished. Wherefore the Lord calls them hypocrites, because to this end judge they the sins of others, that they themselves might seem just. Hence it follows, Thou hypocrite, first cast the beam out of thine own eye, &c.
CYRIL OF ALEXANDRIA. That is to say, first shew thyself clean from great sins, and then afterwards shalt thou give counsel to thy neighbour, who is guilty only of slight sins.
BASIL. (Hom. 9, in Hexameron.) In truth, self knowledge seems the most important of all. For not only the eye, looking at outward things, fails to exercise its sight upon itself, but our understanding also, though very quick in apprehending the sin of another, is slow to perceive its own defects.