John 13:12-15

After washing their feet, he put on his robe again and sat down and asked, “Do you understand what I was doing? You call me ‘Teacher’ and ‘Lord,’ and you are right, because that’s what I am. And since I, your Lord and Teacher, have washed your feet, you ought to wash each other’s feet. I have given you an example to follow. Do as I have done to you.