John 13:14-18

If I then, your Lord and Master, have washed your feet; ye also ought to wash one another’s feet.

For I have given you an example, that ye should do as I have done to you.

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.

If ye know these things, happy are ye if ye do them.

I speak not of you all: I know whom I have chosen: but that the scripture may be fulfilled, He that eateth bread with me hath lifted up his heel against me.