"Do everything without complaining or arguing." _Jesus.

What a crazy concept. I can't imagine going a day without hearing a complaint or an argument or having done one of the two myself. So why does Jesus give us a command that is close to impossible to obey?
Jesus knows we are complainers and will always create or be involved in arguments because we're human. And although I believe no one enjoys these things (unless an imbalance in them causes them to thrive on drama... I call it an imbalance because I don't think it's the way our minds naturally work), we still do them. All the time.
Try for a day to not. Don't complain. Don't argue. Everyday I'm around forty kids who sometimes I believe create situations so they can complain or argue about something. Not intentionally I think, but they do. What if when my camp walks to the aquatic center down the street in 100 degree weather, the only conversation was about Justin Beiber or how good the Burger King smells? What if after we played dodgeball, the teams congratulate each other for doing a good job? What if we as adults, enjoyed the company of our friends and family without complaining about the food, the wait in the restaurant, the heat, or the bad service? How different would conversations be with complaints and arguments? How different would our world be?
I think that's the point Jesus was trying to make. He gave us this command because He wants us to think outside the impossibilities we have as humans... to try. He doesn't tell us things that would make our lives worse or more depressing. He gives us guidelines to make our lives more enjoyable. How much more enjoyable would your life be if you tried to follow just this one request from Him?