Washing Feet and Loving Others

"Owe no one anything except to love one another." Paul gives us this pithy commandment in Romans 13. But if we’re honest, we might be tempted to ask, “Why do I owe anyone love in the first place?”  Sure, we can understand that we owe Jesus our love; just look at all He’s done for us! But truth be told, most people haven’t really done much for us that we should owe them anything at all, let alone our love. But notice that Paul here isn’t just saying we should love others. He’s saying that we are literally obligated, indebted to show one another love.  We “owe” them love.  The word "owe" in the original language is most frequently used of financial debt. So where does this love-debt come from?