:
1 Out of the depths have I cried unto thee, O LORD. 2 Lord, hear my voice: let thine ears be attentive to the voice of my supplications. 3 If thou, LORD, shouldest mark iniquities, O Lord, who shall stand? 4 But there is forgiveness with thee, that thou mayest be feared. 5 I wait for the LORD, my soul doth wait, and in his word do I hope. 6 My soul waiteth for the Lord more than they that watch for the morning: I say, more than they that watch for the morning. 7 Let Israel hope in the LORD: for with the LORD there is mercy, and with him is plenteous redemption. 8 And he shall redeem Israel from all his iniquities.
[AD 430] Augustine of Hippo on Psalms 130:1
"Out of the deep have I called unto You, O Lord: Lord, hear my voice" [Psalm 130:1]. Jonas cried from the deep; from the whale's belly. [Jonah 2:2] He was not only beneath the waves, but also in the entrails of the beast; nevertheless, those waves and that body prevented not his prayer from reaching God, and the beast's belly could not contain the voice of his prayer It penetrated all things, it burst through all things, it reached the ears of God: if indeed we ought to say that, bursting through all things, it reached the ears of God, since the ears of God were in the heart of him who prayed. For where has not he God present, whose voice is faithful? Nevertheless, we also ought to understand from what deep we cry unto the Lord. For this mortal life is our deep. Whoever has understood himself to be in the deep, cries out, groans, sighs, until he be delivered from the deep, and come unto Him who sits above all the deeps....For they are very deep in the deep, who do not even cry from the deep. The Scripture says, "When the wicked has reached the depth of evils, he despises." [Proverbs 18:3] Now consider, brethren, what sort of deep that is, where God is despised. When each man sees himself overwhelmed with daily sins, pressed down by heaps and weights, so to speak, of iniquities: if it be said unto him, Pray unto God, he laughs. In what manner? He first says, If crimes were displeasing unto God, should I live? If God regarded human affairs, considering the great crimes which I have committed, should I not only live, but be prosperous? For this is wont to happen to those who are far in the deep, and are prosperous in their iniquities: and they are the more plunged in the deep, in proportion as they seem to be more happy; for a deceitful happiness is itself a greater unhappiness....

[AD 430] Augustine of Hippo on Psalms 130:2-3
"Lord, hear my voice. O let Your ears consider well the voice of my complaint" [Psalm 130:2]. Whence does he cry? From the deep. Who is it then who cries? A sinner. And with what hope does he cry? Because He who came to absolve from sins, gave hope even to the sinner down in the deep. What therefore follows after these words: "If Thou, Lord, will be extreme to mark what is amiss, O Lord, who may abide it?" [Psalm 130:3]. So, he has disclosed from what deep he cried out. For he cries beneath the weights and billows of his iniquities....He said not, I may not abide it: but, "who may abide it?" For he saw that near the whole of human life on every side was ever bayed at by its sins, that all consciences were accused by their thoughts, that a clean heart trusting in its own righteousness could not be found.

[AD 380] Apostolic Constitutions on Psalms 130:3-4
When you see the offender, with severity command him to be cast out. As he is going out, let the deacons also treat him with severity, and then let them go and seek for him and keep him out of the church. When they come in, let them entreat you for him. For our Savior entreated his Father for those who had sinned, as it is written in the Gospel: “Father, forgive them; for they know not what they do.” Then order the offender to come in. And if on examination you find that he is penitent and fit to be received at all into the church when you have assigned him his days of fasting, according to the degree of his offense—as two, three, five or seven weeks—so set him at liberty and speak such things to him as are fit to be said by way of reproof, instruction and exhortation to a sinner for his reformation, so that he may continue privately in his humility and pray to God to be merciful to him, saying: “If you, O Lord, should mark iniquities, O Lord, who shall stand? For with you there is forgiveness.” This sort of statement contains what is said in the book of Genesis to Cain: “You have sinned; be quiet”; that is, do not continue in sin. That a sinner ought to be ashamed for his own sin, the oracle of God delivered to Moses concerning Miriam is a sufficient proof, when he prayed that she might be forgiven. For God said to him, “If her father had spit in her face, should she not be ashamed? Let her be shut out of the camp for seven days, and afterwards let her come in again.” We therefore ought to do the same with offenders, when they profess their repentance, namely, to separate them for a period of time, according to the degree of their offense; and afterwards, as fathers deal with their children, receive them again on their repentance.

[AD 430] Augustine of Hippo on Psalms 130:4
But wherefore is there hope? "For there is propitiation with You" [Psalm 130:4]. And what is this propitiation, except sacrifice? And what is sacrifice, save that which has been offered for us? The pouring forth of innocent blood blotted out all the sins of the guilty: so great a price paid down redeemed all captives from the hand of the enemy who captured them. "With You," then, "there is propitiation." For if there were not mercy with You, if Thou chosest to be Judge only, and refused to be merciful, You would mark all our iniquities, and search after them. Who could abide this? Who could stand before You, and say, I am innocent? Who could stand in Your judgment? There is therefore one hope: "for the sake of Your law have I borne You, O Lord." What law? That which made men guilty. For a "law, holy, just, and good," [Romans 7:12] was given to the Jews; but its effect was to make them guilty. A law was not given that could give life, [Galatians 3:21] but which might show his sins to the sinner. For the sinner had forgotten himself, and saw not himself; the law was given him, that he might see himself. The law made him guilty, the Lawgiver freed him: for the Lawgiver is the Supreme Power.. ..There is therefore a law of the mercy of God, a law of the propitiation of God. The one was a law of fear, the other is a law of love. The law of love gives forgiveness to sins, blots out the past, warns concerning the future; forsakes not its companion by the way, becomes a companion to him whom it leads on the way. But it is needful to agree with the adversary, while you are with him in the way. [Matthew 5:25] For the Word of God is your adversary, as long as thou dost not agree with it. But you agree, when it has begun to be your delight to do what God's Word commands. Then he who was your adversary becomes your friend: so, when the way is finished, there will be none to deliver you to the Judge. Therefore, "For the sake of Your law I have waited for You, O Lord," because you have condescended to bring in a law of mercy, to forgive me all my sins, to give me for the future warnings that I may not offend...."For the sake," therefore, "of" this "law I have waited for You, O Lord." I have waited until You may come and free me from all need, for in my very need You have not forsaken the law of mercy...."My soul has waited for Your word."...

[AD 430] Augustine of Hippo on Psalms 130:5
We therefore trust without fear on the word of Him who cannot deceive. "My soul has trusted in the Lord, from the morning watch even unto night" [Psalm 130:5]. This morning watch is the end of night. We must therefore understand it so that we may not suppose we are to trust in the Lord for one day only. What do you conceive to be the sense, then, brethren? The words mean this: that the Lord, through whom our sins have been remitted, arose from the dead at the morning watch, so that we may hope that what went before in the Lord will take place in us. For our sins have been already forgiven: but we have not yet risen again: if we have not risen again, not as yet has that taken place in us which went before in our Head. What went before in our Head? Because the flesh of that Head rose again; did the Spirit of that Head die? What had died in Him, rose again. Now He arose on the third day; and the Lord as it were thus speaks to us: What you have seen in Me, hope for in yourselves; that is, because I have risen from the dead, you also shall rise again.

[AD 430] Augustine of Hippo on Psalms 130:7-8
"For with the Lord there is mercy, and with Him is plenteous redemption" [Psalm 130:7]. Admirable! This could not have been better said in its own place, on account of the words, "From the morning watch." Wherefore? Because the Lord rose again from the morning watch; and the body ought to hope for that which went before in the Head. But, lest this thought should be suggested: The Head might rise again, because It was not weighed down with sins, there was no sin in Him; what shall we do? Shall we hope for such a resurrection, as went before in the Lord, while we are weighed down by our sins? But see what follows: "And He shall redeem Israel from all his sins" [Psalm 130:8]. Though therefore he was weighed down with his sins, the mercy of God is present to him. For this reason, He went before without sin, that He may blot out the sins of those that follow Him. Trust not in yourselves, but trust from the morning watch....

[AD 461] Leo the Great on Psalms 130:7
But satisfaction must not be ruled out or absolution denied to those who in time of necessity or in the moment of pressing danger beg for the protection of penance followed by absolution. For we cannot put limitations on the mercy of God or fix limits to times. With him there is no delaying of pardon when the conversion is genuine, as the Spirit of God says through the prophet: “If being converted you lament, you will be saved”; and elsewhere: “Tell me your sins first in order that you may be justified”;7 and again: “Because with the Lord there is mercy; and with him plentiful redemption.” Consequently, we must not be stingy in dispensing the gifts of God or disregard the tears and groans of those accusing themselves, since, in our opinion, the very desire for penance was conceived through the inspiration of God, as the apostle says: “Lest by chance God give them repentance … so that they may recover themselves from the snare of the devil, at whose pleasure they are held captive.”