When you realize the cruelty of cruel ages – includes us too…
Again, grace.
If, then, you are ever tempted to think that we modern Western Europeans cannot really be so very bad because we are, comparatively speaking, humane—if, in other words, you think God might be content with us on that ground—ask yourself whether you think God ought to have been content with the cruelty of cruel ages because they excelled in courage or chastity. You will see at once that this is an impossibility. From considering how the cruelty of our ancestors looks to us, you may get some inkling how our softness, worldliness, and timidity would have looked to them, and hence how both must look to God.
-C.S. Lewis, The Problem Of Pain (Amazon)