Origen

“ The general conception of the parable is to teach us that we should be inclined to forgive the sins committed against us by those who have wronged us, and especially if after the wrongdoing he who has done it supplicates him who has been wronged, asking forgiveness for the sins which he has committed against him. ”

“ But it is probable also that some other things could be added to the number by a more competent investigator, the exposition and interpretation of which I think to be beyond the power of man, and requiring the Spirit of Christ who spoke them in order that Christ may be understood as He spoke ”