John 13:14-16

13:14 If I then, [your] Lord and Master, have washed your feet; ye also ought to wash one another’s feet. 13:15 For I have given you an example, that ye should do as I have done to you. 13:16 Verily, verily, I say unto you, The servant is not greater than his lord; neither he that is sent greater than he that sent him.

John 13:34

13:34 A new commandment I give unto you, That ye love one another; as I have loved you, that ye also love one another.