Pseudo-Chrysostom
Catena Aurea · Matthäusevangelium 5
Ye have heard that it hath been said, Thou shalt love thy neighbour, and hate thine enemy. But I say unto you, Love your enemies, bless them that curse you, do good to them that hate you, and pray for them which despitefully use you and persecute you; That ye may be the children of your Father which is in heaven: for He maketh His sun to rise on the evil and on the good, and sendeth rain on the just and on the unjust. For if ye love them which love you, what reward have ye? do not even the Publicans the same? And if ye salute your brethren only, what do ye more than others? do not even the Publicans so? Be ye therefore perfect, even as your Father which is in heaven is perfect.
As that, Thou shalt not lust, was not spoken to the flesh, but to the spirit, so in this the flesh indeed is not able to love its enemy, but the spirit is able; for the love and hate of the flesh is in the sense, but of the spirit is in the understanding. If then we feel hate to one who has wronged us, and yet will not to act upon that feeling, know that our flesh hates our enemy, but our soul loves him.