What difference does a preposition make?

My high school friend Brad Kile was an early adopter of the "white suburban kid who acts like an urban African American kid" mentality. Brad could dance and rap and shoot hoops better than most of us (you don't want to see me attempt any of the three). He talked like he was from the city (the ATL), even though we lived in a pretty suburban town. Brad had this way of answering the general "Whaddup, Brad?" question with a deep South kind of "Doin' thangs..." that made him seem cool. Doin' thangs...kind of implies control, power, ability. What's up is whatever I want to be up, whatever I want to do. Pretty soon we all said it. Doin' thangs.

So when He had washed their feet, and taken His garments and reclined at the table again, He said to them, "Do you know what I have done to you? You call Me Teacher and Lord; and you are right, for so I am. If I then, the Lord and the Teacher, washed your feet, you also ought to wash one another's feet. For I gave you an example that you also should do as I did to you. John 13:12-15 NASB

Ok, so it hit me today that Jesus twice says, "done to you" in this interaction with his disciples. Not done for you. Is that significant?

Done to you:
:an act of one's will imposed on another's
:without needing permission
:without respect for approval
:indicates authority and power of place
:but humble, gentle, serving

Ah yes, now we get to it. Serving. We've been talking about serving for the last 6 weeks in our church and in our lifegroup. We've come to the conclusion that we talk about serving a lot more than we actually get out and serve...


I am thinking that serving requires:
strength
ability (power)
inclination
intention
humility
confidence

but not permission

done to you...thank you, Jesus, for doin' thangs.