Eusebius of Caesarea was a 3rd century bishop. He wrote a great many things, and historians give him mixed reviews, but his words in this prayer are, without question, inspired by the Holy Spirit.
May I be no man's enemy, and may I be the friend of that which is eternal and abides.
May I never quarrel with those nearest me; and if I do, may I be reconciled quickly.
May I never devise evil against any man; if any devise evil against me,
may I escape uninjured and without the need of hurting him.
May I love, seek, and attain only that which is good.
May I wish for all men's happiness and envy none.
May I never rejoice in the ill-fortune of one who has wronged me.
When I have done or said what is wrong, may I never wait for the rebuke of others,
but always rebuke myself until I make amends.
May I win no victory that harms either me or my opponent.
May I reconcile friends who are angry with one another.
May I, to the extent of my power, give all needful help to my friends and to all who are in want.
May I never fail a friend in danger.
When visiting those in grief: may I be able, by gentle and healing words, to soften their pain.
May I respect myself. May I always tame that which rages within me.
May I accustom myself to be gentle and never be angry with people because of circumstances.
May I never discuss who is wicked and what wicked things he has done, but know good men and follow in their footsteps, through Christ our Lord. Amen.
- Eusebius of Caesarea, 3rd c.