Luke records that the disciples had just argued about who should be regarded as the greatest (Luke 22:24). Jesus responds by showing them that the greatest is the one who serves (John 13:14). They are to mimic him (13:16)!
Isn’t’ it amazing that Jesus was even willing to wash Judas’ feet (13:2)? How hard is it for us to treat those who wish us harm with that kind of grace?
When Peter questions Jesus, Jesus give us some clues about our daily walk with Him. When we believe in Him our whole body has been washed and we are clean (13:10)! But we can still sin. We can still dirty our feet, and our feet need to be cleaned. We do that through confession and repentance. John teaches us that this is something we need to do in his first letter:
1 John 1:9 “But if we confess our sins, he is faithful and righteous, forgiving us our sins and cleansing us from all unrighteousness.”