By judging others we blind ourselves to our own evil and to the grace which other are just as entitled to as we are. - Dietrich Bonhoeffer

By our enemies Jesus means those who are quite intractable and utterly unresponsive to our love.

At the end of a life spent in the pursuit of knowledge Faust has to confess: "I now see that we can nothing know." That is the answer to a sum, it is the outcome of a long experience. But as Kierkegaard observed, it is quite a different thing when a freshman comes up to the university and uses the same sentiment to justify his indolence. As the answer to a sum it is perfectly true, but as the initial data it is a piece of self-deception.

Neither protest nor the use of force accomplish anything here; reasons fall on deaf ears; facts that contradicts one's prejudgment simply need to be believed — in such moments the stupid person even becomes critical — and when facts are irrefutable they are just pushed aside as inconsequential, as incidental.