If you harbor rancor against anybody, pray for them and you will prevent the passion from being aroused; for by means of prayer you will separate your resentment from the thought of the wrong they have done you. When you have become loving and compassionate towards them, you will wipe the passion completely from your soul. If somebody regards you with rancor, be pleasant to them, be humble and agreeable in their company, and you will deliver them from their passion….
You will find it hard to check the resentment of an envious person, for what he envies in you he considers his own misfortune. You cannot check his envy except by hiding from him the thing that arouses his passion. If this thing benefits many but fills him with resentment, which side will you take? You have to help the majority but without, as far as possible, disregarding him, and without being seduced by the cunning of the passion itself, for you are defending not the passion but the sufferer. You must in humility consider him superior to yourself, and always, everywhere and in every matter put his interest above yours. As for your own envy, you will be able to check it if you rejoice with the man whom you envy whenever he rejoices, and grieve whenever he grieves, thus fulfilling St Paul’s words, “Rejoice with those who rejoice, and weep with those who weep” (Romans 12:15).
~St Maximos the Confessor