In addition to these there is also a seventh [remission of sins], but it is hard and laborious: the remission of sins through penance, when the sinner washes his pillow in tears [Ps 6:7], when his tears are his nourishment day and night [Ps 41:4], and when he does not shrink from declaring his sin to a priest of the Lord and from seeking medicine. – Homilies on Leviticus, 2:4 (249 A.D)


Origen of Alexandria