“He himself experienced our sin, he himself gave his own son, a ransom on our behalf, the Holy for the lawless, the innocent for the guilty, the righteous for the unrighteous, the incorruptible for the corruptible, the immortal for the mortal. For what else than that one’s righteousness could cover up our sin? In who else than in the Son of God alone could our lawlessness and ungodliness possibly be justified? Oh, the sweet exchange! … Oh, the unexpected benefits that the lawlessness of many should be concealed in the one righteous, and righteousness of the one should justify many lawless.”“Epistle to Diognetus,” in The Apostolic Fathers in English, trans. Rick Brannan, 9.2–5. A letter from the late second or possibly early third century.