Nicene and Post-Nicene Fathers, Ser. II, Vol. XI:
The Works of John Cassian.: Chapter XIV. Of reconciliation with our brother.

Chapter XIV.

Of reconciliation with our brother.

And because we often spurn the brethren who are injured and saddened, and despise them, and say that they were not hurt by any fault of ours, the Healer of souls, who knows all secrets, wishing utterly to eradicate all opportunities of anger from our hearts, not only commands us to forgive if we have been wronged, and to be reconciled with our brothers, and keep no recollection of wrong or injuries against them, but He also gives a similar charge, that in case we are aware that they have anything against us, whether justly or unjustly, we should leave our gift, that is, postpone our prayers, and hasten first to offer satisfaction to them; and so when our brother’s cure is first effected, we may bring the offering of our prayers without blemish. For the common Lord of all does not care so much for our homage as to lose in one what He gains in another, through displeasure being allowed to reign in us. For in any one’s loss He suffers some loss, who desires and looks for the salvation of all His servants in one and the same way. And therefore our prayer will lose its effect, if our brother has anything against us, just as much as if we were cherishing feelings of bitterness against him in a swelling and wrathful spirit.