Furthermore …

The prophet Isaiah tells us that we should not, as some think, love only our own people; rather we should say to those who hate and curse you, “You are our brothers!” And the Gospel also simply says, “Love those who hate and curse you.”

— Theophilus of Antioch

God resists the proud, but He gives grace to the humble.

— St Augustine

This is the rule of the most perfect Christianity … CARING FOR YOUR NEIGHBOR. Indeed, even though you fast, or sleep on hard ground, or even suffer unto death, yet take no thought for your neighbor, you have done nothing great; despite what you have done, you still stand far from this model of a perfect Christian.

— St John Chrysostom

And as we by our prayers vanquish all demons who stir up war, and lead to the violation of oaths, and disturb the peace, we in this way are much more helpful to the kings than those who go into the field to fight for them. And we do take our part in public affairs, when along with righteous prayers we join in self-denying exercises and meditations, which teach us to despise pleasures, and not be led away by them. And none fight better for the king than we do. We do not indeed fight under him, although he requires it; but we fight on his behalf, forming a special army — and army of piety — by offering our prayers to God.

— Origen