I don’t know I believe its more in line with today. “Over time, the forms in which the sacrament has been administered have changed.” I think this article by CAF is vague but indeed accurate.
catholic.com/tracts/confession
Origen
“[A final method of forgiveness], albeit hard and laborious [is] the remission of sins through penance, when the sinner . . . does not shrink from declaring his sin to a priest of the Lord and from seeking medicine, after the manner of him who say, ‘I said, “To the Lord I will accuse myself of my iniquity”’” (Homilies on Leviticus 2:4 [A.D. 248]).
The existing works of Origen on Leviticus are significant also Numbers and Exodus.
For example the above paragraph on Leviticus includes in context…
“(…) listen now to how many are the remissions of sins in the Gospels.
There is a first one when we are baptized for the remission of sins (1) . A second remission occurs in the sufferings of martyrdom; the third one is that which comes by the alms. In fact our Saviour says: rather give what you have, and everything will be right for you (2) . A fourth remission of sins happens when we ourselves remit the sins of our brothers; in fact just our Saviour and Lord says: For if ye forgive men their trespasses, your heavenly Father will also forgive you: But if ye forgive not men their trespasses, neither will your Father forgive your trespasses (3) ; as he taught us to say in our prayers: And forgive us our debts, as we forgive our debtors (4) .
A fifth remission of sins is when we convert a sinner from his stray path. In fact the divine Scripture says so: remember this: Whoever turns a sinner from the error of his way will save him from death and cover over a multitude of sins (5) . A sixth remission occurs by the over-pouring of charity, as the Lord himself says: Therefore, I tell you, her many sins have been forgiven - for she loved much (6) , and the Apostle says: charity covers a multitude of sins (7) . There is still a seventh remission of sins - hard and toilsome - that through repentance, when the sinner covers with tears his bed (8) and his tears are his bread day and night (9) , and when he is not ashamed of revealing his sin to a priest of the Lord, and of seeking the medicine accordingly to the word of He who affirms: Then I acknowledged my sin to you and did not cover up my iniquity. I said, “I will confess my transgressions to the Lord” and you forgave the guilt of my sin” Faith of the Early Church Fathers Vol-1 pg 207
“Here the rule which the law enjoins: “If someone of the after mentioned should have sinned” it says, “he shall confess the sin which he sinned” There is something wonderful hidden in this, whereby confession of sins is commanded. For they are to be confessed, whatever kind they be; and all that we do must be bought forward in public. Whatever we have done in secret, whatever we have committed by word or in our thoughts …all must be made public, all must be bought forward by him who is both the accuser of the sin and the investigator there of. For the one who incites us to sin is the one who will accuse us when we have sinned. If, therefor. we anticipate him in life and become the accusers of ourselves, we will escape the malice of the devil, our enemy and accuser. You see then the confession of sin merits the remission of sin. For is we proceed the devil in making our accusation, he will not be able to accuse us. If we become our own accusers, it profits us until salvation. But if we wait until the devil has accused us, the accusation delivers us to punishment” Leviticus 3, 4
“In regard to grave crimes a place for repentance is conceded only once. Those, however, which are common and into which we frequently fall. always admit repentance, and are forgiven without cease” Leviticus 15, 2
Homily 8, 3 covers Baptism for the remission of sin with infants.
Numbers Hom. 24, 1 “So long as there was sin, it is necessarily required that there be sacrificial victims for sins. The animals served for the purification of the people”