Feet Washing. - Is it Biblical?

Jesus washed the feet of his disciples.
Jesus said to his disciples, I washed your feet.
You also, ought to wash other saint's feet.
Should we interpret Jesus's command literally?
Or did Jesus mean that we should look for ways to serve one another?
It seems obvious that it's designed to teach humility.
Jesus said I'm Your Leader, yet I humble myself to wash your feet.
So how much more should you be humbled
towards one another?

John Chapter 13 verses 12-15.
My take on this topic is this: Since Jesus commanded the washing of the saint's feet that every saint should practice this command. However, more than that, every saint should practice humility.

Proverbs 29:23 - A man's pride shall bring him low: but honour shall uphold the humble in spirit.