John 13:34 – 35
New International Version (NIV)
34 “A new command I give you: Love one another. As I have loved you, so you must love one another. 35 By this everyone will know that you are my disciples, if you love one another.”
From BibleGateway.com: http://www.biblegateway.com/passage/?search=john+13.34-35&version=NIV
NIV®