John 13:12-14 NIV

[12] When he had finished washing their feet, he put on his clothes and returned to his place. “Do you understand what I have done for you?” he asked them. [13] “You call me ‘Teacher’ and ‘Lord,’ and rightly so, for that is what I am. [14] Now that I, your Lord and Teacher, have washed your feet, you also should wash one another’s feet.