‘Renounce yourself in order to follow Christ; discipline your body; do not pamper yourself, but love fasting. You must relieve the lot of the poor, clothe the naked, visit the sick, and bury the dead. Go to help the troubled and console the sorrowing.
‘Your way of acting should be different from the world’s way; the love of Christ must come before all else. You are not to act in anger or nurse a grudge. Rid your heart of all deceit. Never give a hollow greeting of peace or turn away when someone needs your love. Bind yourself to no oath lest it prove false, but speak the truth with heart and tongue.
‘Do not repay one bad turn with another. Do not injure anyone, but bear injuries patiently. Love your enemies. If people curse you, do not curse them back but bless them instead. Endure persecution for the sake of justice’.
Rule of St. Benedict, chapter 4.
There’s a lot more where this came from, but this is enough for now, I think!