Augustine of Hippo : He [the one who is fasting] will wash his face, that is, cleanse his heart, with which he will see God, no veil being interposed on account of the infirmity contracted from squalor; but being firm and steadfast, inasmuch as he is pure and guileless.… From the squalor, therefore, by which the eye of God is offended, our face is to be washed. — SERMON ON THE MOUNT 2:42 Augustine of Hippo : So present yourself to such a head as a body worthy of him, to such a bridegroom as a worthy bride.… This is the bride of Christ, without stain or wrinkle. Do you wish to have no stain? Do what is written.… Do you wish to have no wrinkle? Stretch yourself on the cross. You see, you do not only need to be washed but also to be stretched, in order to be without stain or wrinkle; because by the washing sins are removed, while by the stretching a desire is created for the future life, which is what Christ was crucified for. — SERMON 341:13 Bede : Now they ask wrongly who persevere in sins and ill-advisedly entreat the Lord to forgive them the sins they do not at all forgive [others]. He condemns such as these through [the mouth of] Isaiah.… Still, having regard for such as these, Isaiah shows in what way they can obtain what they plead for when he goes on. — Homilies on the Gospels 2:14 Clement of Rome : The ministers of the grace of God have, by the Holy Spirit, spoken of repentance; and the Lord of all things has himself declared with an oath regarding it, "As I live, says the Lord, I desire not the death of the sinner, but rather his repentance;" [Ezekiel 33:11] adding, moreover, this gracious declaration, "Repent, O house of Israel, of your iniquity." [Ezekiel 18:30] Say to the children of my people, Though your sins reach from earth to heaven, and though they be redder than scarlet, and blacker than sack-cloth, yet if you turn to me with your whole heart, and say, Father! I will listen to you, as to a holy people. [2 Chronicles 7:14] And in another place He speaks thus: "Wash you and become clean; put away the wickedness of your souls from before my eyes; cease from your evil ways, and learn to do well; seek out judgment, deliver the oppressed, judge the fatherless, and see that justice is done to the widow; and come, and let us reason together. He declares, Though your sins be like crimson, I will make them white as snow; though they be like scarlet, I will whiten them like wool. And if you be willing and obey me, you shall eat the good of the land; but if you refuse, and will not hearken unto me, the sword shall devour you, for the mouth of the Lord has spoken these things." [Isaiah 1:16-20] Desiring, therefore, that all His beloved should be partakers of repentance, He has, by His almighty will, established [these declarations]. — Clement's First Letter to the Corinthians, Chapter 8 Gregory the Dialogist : For he neglects being clean after washing, whosoever after tears keeps not innocency of life. And they therefore are washed, but are in no wise clean, who cease not to bewail the things they have committed, but commit again things to be bewailed. Hence it is said through Isaiah, Wash you, be ye clean. — PASTORAL CARE 3:30 Hippolytus of Rome : Beloved, see how the prophet predicted the washing of baptism. For the person who comes to the washing of regeneration with faith, renounces the devil, joins himself to Christ, denies the enemy, confesses that Christ is God, puts off the bondage and puts on the adoption is the one who emerges from the baptism "as bright as the sun," shining with beams of righteousness and, most importantly, returns a child of God and a joint heir with Christ. — ON THE THEOPHANY 10 Jerome : (Verse 16.) Wash yourselves, be clean. For the previous sacrifices, and burnt offerings, and the fat of the rich, and the blood of bulls and goats: and for the incense and new moons, sabbaths, feast days and fasts, calends and other solemnities, the religion of the Gospel is pleasing to me: that you may be baptized in my blood through the washing of regeneration, which alone can forgive sins. For unless one is born again of water and the Spirit, they will not enter the kingdom of heaven (John 3:5) . The Lord himself, ascending to the Father, said: Go, teach all nations, baptizing them in the name of the Father, and of the Son, and of the Holy Spirit (Matthew 28:19). Remove the evil of your thoughts from my sight. As John the Baptist said: 'Brood of vipers, who warned you to flee from the coming wrath? Produce fruit worthy of repentance.' (Matt. III, 7; Luke III, 7) So, whoever has received Christ's baptism, let them remove evil from their heart and cease to do evil, and afterwards learn to do good, according to what is commanded elsewhere: 'Turn away from evil and do good.' (Ps. XXXVI, 27) Learn to do good. Therefore virtue must be learned, and the good of nature alone is not sufficient for justice, unless someone is educated in appropriate disciplines (I Pet. II, 11). Jesus also son of Sirach speaks as follows: You have desired wisdom, keep the commandments, and the Lord will give it to you. And in the following, the same Isaiah mentions: Everyone who has not learned justice on earth will not do truth (Ch. XXVI, 10, sec. LXX). Therefore, justice must be learned, and the thresholds of wise teachers must be worn away. — Commentary on Isaiah John Chrysostom : Let us become clean to the utmost of our power. Let us wipe away our sins. And how to wipe them away, the prophet teaches, saying, "Wash you, make you clean, put away your wickedness from your souls, before Mine eyes." What is "before Mine eyes"? Because some seem to be free from wickedness, but only to men, while to God they are manifest as being "whited sepulchers." Therefore He says, so put them away as I see.… "Come now, and let us reason together, saith the Lord: and though your sins be as scarlet, I will make you white as snow, and if they be as crimson, I will make you white as wool." Thou seest that we must first cleanse ourselves, and then God cleanses us. For having said first, "Wash you, make you clean," He then added "I will make you white."… Great then is the power of repentance, at least if it makes us as snow, and whitens us as wool, even if sin have first got possession and dyed our souls. — ON THE EPISTLE TO THE Hebrews 12:4 John Chrysostom : For the Prophet also saith, "Wash you, make you clean, put away the wickedness from your souls"; so that such a one is washed and is clean. Since then these men had cast away all wickedness from their souls, and had companied with Him with a pure mind, therefore He saith according to the word of the Prophet, "he that is washed is clean already." For in that place also It meaneth not the "washing" of water, practiced by the Jews; but the cleansing of the conscience. Be we then also clean; learn we to do well. — HOMILIES ON THE GOSPEL OF John 70 John Chrysostom : Let us accept the medicine that obliterates our failures. Repentance is not what is spoken in words but what is confirmed by deeds, the repentance that obliterates the filth of impiety from the heart.… Why "before my eyes"? Because the eyes of people see differently, and the eye of God sees differently.… "Do not adulterate repentance with pretense," he says, "but, before my eyes, which examine what is secret, reveal the fruits of repentance." — HOMILIES ON REPENTANCE AND ALMSGIVING 7:3.10