For further edification, we’re told WHY Jesus washed the disciple’s feet, later in John 13:17. This is critical to understanding the actions of Jesus.
6He came to Simon Peter, who said to him, “Lord, do you wash my feet?”
7Jesus answered him, “What I am doing you do not understand now, but afterward you will understand.”
8Peter said to him, “You shall never wash my feet.” Jesus answered him, “If I do not wash you, you have no share with me.” (Judas has already left the scene yet not betrayed Jesus.)
Judas had no “share with [Jesus]”!
14If I then, your Lord and Teacher, have washed your (the disciples) feet, you also ought to wash one another’s (disciples) feet.
15For I have given you AN EXAMPLE, that you also should do just as I have done to you.
The “who” in this passage is paramount. Who is Jesus a addressing?
His disciples!
And how did Jesus define a disciple of His?
Luke 9:23Then he said to them all: “Whoever wants to be my disciple must deny themselves and take up their cross daily and follow me.”
This absolutely didn’t describe Judas.
Jesus didn’t wash the feet of Judas.
Not according to these two later verses.
30 He then having received the sop went immediately out: and it was night.
31 Therefore, when he was gone out, Jesus said, Now is the Son of man glorified, and God is glorified in him.