Free from wickedness

"Wash your heart from wickedness, that you may be saved. How long shall your evil thoughts lodge within you?" Jeremiah 4:14

The impurity of the heart leaves the soul in darkness. Sin kills little by little. But when it's is rejected once and for all, the thoughts become like the thoughts of God and enlightens a person to have life.

Wash the feet

"If I then, your Lord and Teacher, have washed your feet, you also ought to wash one another’s feet."

John 13: 14

Jesus did not wash His disciples' feet to show humbleness, but to teach them how to behave with one another. The servant does not question, but obey.