Regarding the devil and his angels, and the opposing influences, the teaching of the Church has laid down that these beings exist indeed; but what they are, or how they exist, it has not explained with sufficient clearness. This opinion, however, is held by most, that the devil was an angel, and that, having become an apostate, he induced as many of the angels as possible to fall away with himself, and these up to the present time are called his angels. (From the preface)

What do we know of evil? We know it exists. But precisely what it is and how it exists "has not been explained with sufficient clearness."

Origen implies that evil emerges from our free choice. Satan was close to God but chose to rebel and persuaded others to join in rebellion.

This has been a week when the battle between good and evil, light and darkness, has seemed very close.

I have spent hours with those who are angry for good cause and nearly as long with those who are angry for reasons I cannot discern.

I have also seen people reach out in hope, thanksgiving, and love.