ABBA Zeno said, “If a man wants God to hear his prayer quickly, then before he prays for anything else, even his own soul, when he stands and stretches out his hands towards God, he must pray with all his heart for his enemies. Through this action God will hear everything that he asks.”
From the Sayings of the Desert Fathers, at Word From The Desert.
SAVE, Lord, and have mercy on those who hate me and offend me, and do me harm. Do not let them perish because of me, a sinner. (Prostration)
SAVE, Lord, and have mercy on those whom I have caused to stumble, turning them away from the path of salvation and leading them to evil and unseemly deeds. Return them to the path of salvation by thy Divine Providence. (Prostration)
LORD Jesus Christ, Who didst command us to love our enemies, and those who defame and injure us, and to pray for them and forgive them; Who Thyself didst pray for Thine enemies, who crucified thee: grant us, we pray, the spirit of Christian reconciliation and meekness, that we may heartily forgive every injury and be reconciled with our enemies.
Grant us to overcome the malevolence and offences of people with Christian meekness and true love of our neighbor. We further beseech Thee, O Lord, to grant to our enemies true peace and forgiveness of sins; and do not allow them to leave this life without true faith and sincere conversion.
And help us repay evil with goodness, and to remain safe from the temptations of the devil and from all the perils which threaten us, in the form of visible and invisible enemies. Amen.
From the Orthodox Page.