Years ago, when I had an as-yet untreated corneal disease, I had very limited vision.  I once accidentally stepped into a coffee cart line in a hospital lobby, and without meaning to, cut off a number of people.  I got yelled at loudly - and felt both angry and embarrassed when the woman who yelled at me didn't seem to care that I couldn't see well.  We look at a few quotes, from Deuteronomy, Isaiah, and Ecclesiastes, that have to do with how we treat others, how God looks after us, and our duty to take care of other people - and to see things from their perspective.  There was another, very real reason why I had no business being unhappy with this woman.