In order to wash someone's feet you have to bring your posture lower than that of the one you are serving. "Do nothing from rivalry or conceit, but in humility count others as more significant than yourself" (Phil. 2:3)
It's not so difficult to serve those that we care deeply about. A spouse, a child, a sibling, a close friend etc. Out of our love and relationship we desire to bless them, but how about those we aren't so close to? How about that annoying co-worker, how about the one who gossips about you, the person who broke your trust, the one who has stabbed you in the back? That's not so easy.
I was reading John 13 the other day when several things stuck out to me. The first being Peter's reaction to Jesus washing His feet (go read that), and the other being that Jesus washed the feet of Judas KNOWING that Judas was soon to betray Him. Jesus didn't go around the room get to Judas and say you're a liar, you're a thief, you're a betrayer, I don't have to wash your feet. Jesus still got down on his knees and served him, unselfishly.
When is the last time that you "washed the feet" of one you're not so fond of? I just want to be like my Jesus and He washed the feet of His betrayer.
Be Blessed, J. Tate