Tertullian,
Ante-Nicene Fathers Vol. III, Anti-Marcion…
(1885)
“ But that surely, is a small matter; for with the Creator there is a larger grace, when He sets no limits to forgiveness, indefinitely charging you “not to bear any malice against your brother,” [7] and to give not merely to him who asks, but even to him who does not ask. For His will is, not that you should forgive [8] an offence, but forget it. The law about lepers had a profound meaning as respects [9] the forms of the disease itself, and of the inspection by the high priest. ”
